Chapter 1: Fievel and Ichy
Chapter Text
Fievel Mouskewitz headed to the Institute of Science in Manhattan with his family. "I'm worried I'm going to be bored." Fievel protested.
"Cut it out Fievel. This is a very important place and it cost me a whole day's wages to get into here. You're not going to screw it up for the family. Is that understood?" Papa Mouskewitz said firmly. Fievel nodded. HIs father may be gentle in nature but when he was stern, you knew not to argue with him. "Good, now let's get going. We have too much to see to be out here arguing."

Fievel went inside and spent the next several hours traversing the place with his family. After lunch, Fievel found something that was actually interesting to him and inadvertently was left behind by his family. While searching for them, he was seized by a human, the building being actually a human science institute that had a smaller mouse science institute within it. The man took him through a door and into a lab. "This mouse will make an excellent test subject." he said. He put Fievel into a time machine and pushed a few buttons. Fievel tried to escape through a crevice but the time machine whirred into life and transported itself back several million years before he could act. When he stepped outside, he found that he was in a misty wilderness, certainly not the science institute.

"Where am I?" Fievel asked himself. As he saw a pterodactyl move overhead, he realized with horror that somehow he'd been transported back in time to the time of the dinosaurs. He was about to head back to the time machine to head back to his own time when he realized that it would be a terrible shame, almost sinful, to be the first creature to time travel to the time of the dinosaurs and not explore anything. Imagine what he could find to advance the cause of science!

When Fievel was a mile from the time machine, he had seen several interesting creatures and plants. He'd seen a T-rex (who luckily hadn't seen him). He'd seen a pack of pterosaurs fly overhead. He'd seen trees taller than he'd ever seen in his life. Unfortunately for Fievel, he was being seen as well.

Ichy, an ichthyornis, looked down at him from a tree. His stomach rumbled. He hadn't eaten in a while and this unfortunate rodent looked like a good snack. Ichy had never seen such a creature as him before, dressed in clothes. Perhaps he'd talk to him first before eating him.

"Hello there." Ichy said casually, flying down to land beside him.

"Hello. What are you?" Fievel asked.
"I'm Ichy the ichthyornis, sometimes called a sharp beak."
"Ichy what?"
"Ichthyornis."
"Weird name."
"What's your name by the way and what are you supposed to be?"
"I'm Fievel Mouskewitz. I'm just a mouse. I'm actually from the future and time traveled to the past."
"Time traveled eh?" Ichy said. What tall tales this kid was telling. Still, he seemed to be otherworldly. Perhaps he was more evolved and not from nearby.
"Yep. I've come here to explore."
"I've got something for you to explore." Ichy said smugly. "My belly!" Before Fievel could react, he seized him with his talons and then tossed him up in the air. Ichy opened his mouth as Fievel came down, causing him to land in his open beak headfirst.

Ichy began to move Fievel into his mouth. The mouse flinched as Ichy's tongue lapped at his right ear.

Soon, Ichy had Fievel's entire head inside of his mouth. Fievel could feel Ichy's wet tongue pressing against the back of his head.

Ichy continued to move him further in until half his body was in. He struggled, but Ichy stopped the moving of his hands by pinning him to the side of his mouth with his tongue.

Fievel had tried to seize Ichy's tongue but the predator had been too quick, slamming his tongue into the rodent and hindering his resistance.

Ichy tilted his head back, allowing gravity to move the rest of Fievel inside of his mouth. Once the mouse was fully inside, Ichy snapped his jaw shut and began to suck on the rodent. SCHLUCK! SCHLUCK! SCHLUCK! SCHLUCK!

"Cut it out!" Fievel cried. SCHLUCK! SCHLUCK! SCHLUCK! SCHLUCK! Ichy continued to suck on him, coating him in saliva.

After Ichy had sucked on him for a while, soaking him in saliva, he began to move the mouse with his tongue toward the back of his throat.

"No!" Fievel pleaded. However, Ichy's tongue continued to move him, until his head had moved underneath his uvula and into the throat.

Ichy moved him forward until half of his body was in the throat. He struggled helplessly, unable to fight back against being swallowed.

Without a warning, Ichy tilted his head back and swallowed hard. GULLLLLLLLLLLLLPPPPP! "NOOOOOO!" Fievel yelled as he was pitched headlong into the throat and began to be pulled downward by peristalsis.

He made a bulge as he went down the throat. Soon, he fell through the lower esophageal sphincter and landed in the stomach, which was mercifully void of stomach acid. Ichy looked down at his belly to see a distended lump. He licked his lips.

"Normally, I'd chew you up before swallowing you" Ichy began, "but I thought it would be more amusing to swallow you whole and see how well such an 'evolved' creature as yourself can manage inside my stomach."
Fievel pressed as hard as he could against Ichy's stomach. However, he was unable to break through the tough muscular wall nor was he able to upset Ichy's stomach enough to make him vomit him up.
"Let me out! Please!" Fievel begged, continuing to pound on the stomach walls.
"Not till I'm done digesting you." Ichy replied, patting his stomach with his wings.
"What does digesting mean?" Fievel asked.
"Looks like you're going to find out firsthand." Ichy cackled, continuing to rub and massage the distended bulge in his belly that was Fievel.

"How long till I get digested?" Fievel inquired. While he didn't know what the word "digested" meant, he knew enough to know that being digested wasn't a good thing.
"I'd say about a day in the stomach and up to three days from swallowing to exiting." Ichy said. "But it doesn't matter for you. You won't be making it past the first day in the stomach."
Fievel was even more worried now. Not only was he inside a predator's belly, the last place in the world he ever wanted to be, but he had, at most, 24 hours to live before something called "digested" happened to him. He had to find some way out of the belly before then.

"Now, you were a pleasant appetizer, but I still am hungry and think I'll have the main course now." Ichy said. Fievel could feel him move as he took flight, searching for more food to eat. Ichy soon landed in a stream. As his species name, ichthyornis, implied, fish was his favorite food.

He soon had caught several fish and began to greedily devour them, chewing them up and the swallowing them.

Fish began to pelt Fievel in the stomach. He tried to push it off but more continued to land on him. Eventually, Ichy finished. "Now to have some water to wash this meal down." he said. He then began to drink water, dousing Fievel in his stomach.

The stomach began to shake around him as a belly began to rumble. ERRRRRRRRRRRRRRRRRRRRRRPPPP! Ichy belched, causing the stomach to clench tightly around the mouse and expel the air upwards. Before Fievel could pass out from lack of air, Ichy breathed in a bunch, filling the stomach back up with air.

"Can't have you dying just yet. That would be no fun." Ichy cackled.

Over the next several hours, Fievel struggled in vain to escape the confines of Ichy's stomach. He tried to climb up the walls, one time even reaching the valve at the top. However, as he tried to pry it open, Ichy swallowed saliva, which hit him and knocked him back down. It was clear he had no hope of getting back up the throat. But how else could he escape the stomach? There had to be some way, unless Ichy was going to throw him up after digesting him, though Ichy had said that there would be two days that he would be digested even after leaving the stomach. Surely there had to be another way that the food went beside the throat in order to leave and exit Ichy. The question was, where?

Fifteen minutes later, Fievel's search was interrupted by the arrival of more food. It was dinner time now and Ichy was eating again. More fish, plus two lizards that Ichy had hunted, entered into the stomach, broken into chunks. Fievel was now coated in two of Ichy's meals. "Let me out you big bully!" Fievel cried.
"Nope, my belly won't be happy unless you're digested. That was the whole point of eating you."
After Ichy had eaten his fill, and again doused Fievel as he drank water, Fievel resumed his search for a way out. Some hours later, he still hadn't found anything. He was starting to grow tired yet he knew he couldn't afford to rest. The digestion could start soon and then he'd be in trouble.

Soon, the stomach began to growl. "What's going on?" Fievel asked.
"Sounds like the digestion is beginning. It's getting late so I'm going to go to sleep. Let's see if you're still alive in the morning."
As acid came in, some of it hit Fievel, singeing him. Now he knew what the digestion was going to do. He couldn't die this slow and painful way! He ran around the stomach in a panic, greatly worried for his own survival. He slipped on some of the meat chunks and fell down. As he got up, he saw on the floor of the stomach the entrance to the small intestine. He didn't know what it would lead but it, hopefully, would lead him away from certain death. He pushed and pulled on the pyloric sphincter, trying his best to open it as more and more acid entered the stomach. The stomach started to clench, squeezing against him. He had to get out of here!

Finally, using the rest of his strength, he opened it and squeezed his body through. Some of the food in Ichy's stomach exited along with him. He collapsed as he entered the duodenum. Exhausted, he fell asleep.

His sleep didn't last long, however. Soon, he was awakened as something began to pull at him. "What?" he gasped sleepily, looking around. It took him a while to orient himself and realize that he was still inside of Ichy. The villi on the walls of the small intestine had begun to pull at him, trying to absorb him. He was too big of course, but that didn't stop them from trying anyway.

He didn't know where he was going to exit Ichy. Certainly not the mouth from the looks of it. This part of the predator's body was tighter than the stomach had been. Like in the stomach, he could hear the breathing of Ichy's lungs and the beating of his heart. He could hear the stomach gurgling above him as it digested the ichthyornis' meal and he was grateful to not still be in there. As the small intestine twisted and curved, Fievel realized that he was going to be in here for quite a while and di his best to try and fall back asleep. Despite the pulling of the villi, he was exhausted enough that he slept for five hours.

When he awoke this time, he could tell that he was further along in Ichy. The gurgling of the stomach was fainter. The poking of the villi had caused him to have horrible nightmares that he had fallen overboard at sea and was being attacked by giant squids.

He sat in silence for two hours. Then, he could feel Ichy stir. Ichy felt his stomach and noted the absence of movement. "Guess you didn't even last the night. Evolved my cloaca!" Ichy cackled, patting his stomach.
Fievel wondered what a cloaca was. It was a word that he had never heard before. "And speaking of cloaca," Ichy said to himself "I think I'll go empty mine." He emptied out typically once every 24 hours, unless he had diarrhea. He bent down into a squat.

Gas zoomed past Fievel. Since he was in the small intestine, its odor wasn't as foul as it would have been in the colon. He could hear what sounded like farting below him. What was going on? Ichy finished emptying his cloaca, leaving a pile of solid and liquid waste on the ground. His cloaca stored both his liquid and solid wastes until he was ready to void it out of his vent (which also was sometimes called a cloaca as well). After Ichy was done wiping himself, he set off to find breakfast. Fievel, meanwhile, wondered what a cloaca was. It sounded like it got full of stuff which Ichy needed to empty. And it sounded like it was somewhere below him in Ichy's body. What direction exactly he wasn't sure, owing to the twisting and turning of Ichy's bowels. Half an hour later, as he wondered what a cloaca could be, he drifted off to sleep once more.

When he awoke again, Fievel could tell that he was finally nearing the end of Ichy's small intestine. Firstly, he noticed that the villi, so prevalent when he had entered the duodenum, were now fewer and more spaced out now that he was in the ilium. Second, he noticed that the gurgling of Ichy's stomach was more far distant and he could now barely hear the beating of his heart and the sound of breathing from his lungs. Third, the food had become a different and composition than it had been when it had first entered the small intestine hours earlier. It had been many colors when it first entered but was now mostly a greyish color and far more stinky than when it had first entered his bowels. Fourth, the gas, which moved through his bowels from time to time on its way to exit out the cloaca, was worse smelling the deeper and deeper he went.

Though it was hard to say for sure, he figured he'd been inside of Ichy about a full day. And he feared, from what Ichy had said earlier, that it might take him another day still before he reached the "exit" Ichy was talking about. Where might this "exit" be? he wondered to himself.

He approached a valve at the end of the small intestine. "Maybe this is the exit." Fievel said hopefully. However, after being squeezed through it, he quickly saw that he had been wrong in that assumption. If he thought his education in the dinosaur digestive system was uncomfortable from being in the stomach and small intestine, it was nothing compared to what he would experience as he came into the large intestine.



Fievel could see that this chamber was roomier than the small intestine had been. He also quickly noticed that the smell was far worse than it had been in the small intestine as well. The cecum had hardly any villi at all. What could this part of the dinosaur's body do? PHHHHHHHBT! Gas went past him. He wondered why there was so much gas in here. Fievel noticed that the awful smell seemed to be coming from Ichy's leftover food that had remained undigested. With horror, he realized that it was poop. That also explained the presence of all the gas. It was farts that were going past him!

Now he knew where the "exit" was that Ichy had been talking about. This passage must lead to Ichy's anus. Fievel had often wondered where the poop that came out of his anus came from. Now he knew. He wondered what it would feel like to be pooped out a butt.

The stench grew worse the further into the colon he went. After he left behind the cecum, the stench was so strong that he now held his nose. While he may have been able to lessen the discomfort the smell of the feces did to him, he had less control over what the poop itself did to him. As water was removed from the waste by the colon, it began to harden around Fievel. The mouse kept kicking it off of him so that he wouldn't be encased in it, but more and more kept pressing against him.

Fievel realized that he should feel fortunate. If he had stayed in the stomach, he would no doubt have been reduced to the stink pile of waste around him, nothing but dinosaur bird poop and bones. Still, grateful for riding in rather than being poop or not, he was certain that he'd been needing a nice long bath, clothes and all, once he got pooped out of Ichy's butt and before he used the time machine to return to the present.

He sat in silence, or near silence, only disturbed by the squelch of poop as it pressed against the tunnel walls or against Fievel, and by the occasional fart as it zoomed past toward the cloaca to exit Ichy's vent. After five hours of this, he hoped he wouldn't have to wait much longer. He had already been inside Ichy about 30 hours, he reckoned, though, without the sun and moon, and with no watch, he couldn't be certain. The trip certainly seemed to be going quicker than Ichy had said would take to travel his digestive system, even taking into account the time he had shaved off by exiting the stomach early.

As Fievel neared the end of Ichy's large intestine, the tunnel began to shake. Several farts moved past him. "What's going on?" Fievel wondered aloud. As it turned out, Ichy's cloaca was full and he was having a bowel movement. He had stopped to squat down, solid and liquid waste spilling out of his cloaca and onto the ground. Fievel was moved forward and soon landed in the cloaca. As he entered the cloaca, his hat flew off of him. It landed on top of the vent and was excreted out. However, just before Fievel could reach the vent and be pooped out as well, it sealed shut as Ichy finished defecating. "No!" Fievel moaned.

Ichy, meanwhile, having finished wiping his cloacal vent cloaca, looked down at his waste, having felt the hat come out. He had thought that Fievel's clothes and hat had been part of his fur. As such, he assumed that somehow this part of the creature's body had escaped digestion. The creature had had this upon its head. Perhaps he could wear it too. After washing off the shit-stained hat, Ichy put it upon his head. Though not nearly as good a fit as it had been for Fievel, it felt cozy upon his head. "I think I'll keep this." Ichy said to himself.

Fievel looked around inside of Ichy's cloaca. This couldn't be the same as his anus or rectum for it had two holes that fed into it. One dropped in grey solid waste and the other one dropped in whitish semi-solid liquid waste from Ichy's kidneys. Furthermore, Fievel could see Ichy's penis nestled in the corner of Ichy's cloaca. Fievel's own penis was located on the outside of his body and he'd never heard of a creature having it inside before. He felt an urge to bite it, to pay Ichy back for the misery he caused him by putting him through his digestive tract. However, he knew that biting it would alert Ichy to him still being alive and that any short term pleasure he'd get from it would pale in comparison to the consequences he'd receive from the angry ichthyornis when Ichy pooped him out.

He quickly realized that this must be the "cloaca" Ichy was talking about. Ichy had pooped when he had emptied it the previous day. And it looked like he was going to be spending a while inside of it.

He waited as the hours went slowly by, getting more waste dumped on him from the colon and from Ichy's kidneys. Worse, Ichy had eaten spicy food. He liked it, even though he knew it gave him gas. He figured it was worth it. However worth it it was to Ichy, however, it certainly wasn't to Fievel, who had to deal with the symphony of farts as several PHHHHBTS! went by him. He was glad when Ichy stopped passing gas. Finally, after nearly 18 hours inside of Ichy's cloaca, he fell asleep.

He awoke six hours later. Fievel had now been inside of Ichy's cloaca for a full 24 hours. His clothes were heavily soiled by the greyish solid waste from his colon and from the whitish semi-solid liquid waste from his kidneys. PHHHHHBT! Gas moved past him once more as it exited out the vent. Fievel sighed. He couldn't wait to be pooped out and get out of the dinosaur bird's body. Luckily, he wouldn't have to much longer. Ichy, feeling that his cloaca was full, flew up to a tree. He moved his vent over a big hollow spot in the trunk to use as a toilet.

PHHHHBT! PFFFFT! BRRRRRT! A large quantity of gas shot past Fievel as Ichy began to defecate. The waste that was in front of Fievel exited the cloaca and fell down into the hollow below. Fievel came nearer and nearer to the inner ring of the vent. Fievel braced himself as he was pushed up against Ichy's vent.

Ichy, meanwhile, felt a large object pressing against his vent. He figured that it was the bones and fur of Fievel and began to grunt hard. UNNNNNH! UNNNNNNH! UNNNNH! Fievel was repeatedly rammed against Ichy's cloacal vent. UNNNNNNNNNNNNNNNH! Ichy grunted hard, pushing Fievel halfway out of his vent. He was now hanging upside down from Ichy's cloaca with half his body inside of Ichy and half out. It felt good to be in the clean air again after days inside of Ichy's interior. UNNNNNNNNNNNNNNNNNNNNNNNNNNHHHHH! Finally, with a powerful grunt, Ichy squeezed him out and he fell into the hole below.

However, Ichy was far from finished relieving himself. So Fievel could only look up helplessly as more solid and liquid waste came out of Ichy's gaping cloaca above and fell down and splattered him. PWICA! PWICA! PWICA! More grey solid waste came out of the open vent above and landed on Fievel with a SPLAT. SPLORT! SPLORT! SPLORT! Semi-solid white liquid waste splashed onto Fievel as it spilled out of Ichy's cloaca as he continued to relieve himself.

Ichy continued to empty out the rest of his waste until his rectum and kidneys were fully voided. Then, he grabbed some leaves from the tree and used them to wipe his cloaca clean. Flies hovered near Fievel, gorging themselves on Ichy's waste. The mouse, however, ignored them. He climbed up the pile of waste, which luckily was high enough for him to escape the hollow. Ichy was some distance away resting on a branch and was about to take off. Fievel could see that Ichy was wearing his hat. Though he knew it was risky, he didn't want to leave it behind if he could help it. So, as silently as he could, he leapt through the air and grabbed onto the hat. Ichy noticed him as he made impact, but Fievel quickly pulled the loose-fitting hat off of Ichy and dove away, falling several feet. Luckily, the tree Ichy had been in stood beside water, so Fievel landed with a splash rather than a splat.

"How the hell did he survive?" Ichy wondered aloud. Perhaps he was more evolved than Ichy had cared to admit. There was no point in going after a creature that could survive digestion. Ichy just hoped that there weren't many more of his kind around. Otherwise they'd come to displace the dinosaurs if they continued to evolve like this. He flew off, looking for something else less evolved to go eat.

Fievel, meanwhile, struggled to stay afloat. Luckily for him, he soon found a branch that he could cling to before his arms grew too tired from swimming. Unluckily for him, the current was carrying him further and further away from shore. It looked like it would be a while before he would be able to get back to the time machine and make it send him back to his own time.

To Be Continued