The Room Off the Road

The appendix was supposed to be the easy body part.

That was what the surgeon said when she dropped the plastic tray on Maya and Soren’s table at the hospital’s Saturday Body Lab. Inside the tray were clear tubes, bendy connectors, green beads, blue beads, a pump, two clamps, and one rubbery pink thing shaped like a tiny worm.

"Human leftovers," the surgeon said. Her white coat pocket held three pens and a granola bar with one bite missing. "People used to call the appendix useless. Make a simple model. Families arrive at two. I have to find a missing skeleton hand."

She hurried away before Maya could ask why a hospital had skeleton hands that went missing.

Soren picked up the pink worm-thing. "If it is useless, why did they make us include it?"

"Because it dangles," Maya said.

"Lots of useful things dangle."

Maya had already connected the clear tube that was supposed to be the large intestine. She held it up against the picture on the table. The picture showed the small intestine joining a pouch called the cecum, then the colon rising away. The appendix hung off the cecum like an afterthought.

"It is not on the road," Maya said.

Soren opened his paper notebook. Everyone else in the lab used tablets that blinked and chimed. His notebook made a soft sound when he turned a page, like a moth landing.

"Not on the road," he wrote.

Maya pointed at the pump. "Here is the plan. Green beads are good gut bacteria. Blue beads are bad stuff from an illness. We flush the intestine. Everything goes out. Then we say, appendix, proof that bodies keep old junk."

Soren looked at the pink appendix again. "That is a mean exhibit."

"It is a fast exhibit."

They built it fast.

The model looked excellent. Clear colon. Squishy cecum. Little appendix clipped to the side. Maya sprinkled green beads through the tube. Soren added a strip of fuzzy material to the inside because the instruction card said many gut bacteria live in slimy layers along the gut wall, not just floating around like soup.

"Biofilm," he said.

"Gross word," Maya said.

"Accurate word."

They added blue beads at the top, then Maya pressed the pump.

Water rushed through the intestine. Green and blue beads spun together. They clattered down the tube, swirled through the cecum, and shot into the waste cup.

Almost all of them.

Maya stared.

Three green beads had slipped into the appendix.

"No," she said.

Soren leaned closer. "They went into the side pouch."

"They are ruining the uselessness."

"Maybe useless things can still catch beads."

Maya pinched the appendix and shook it. Two green beads dropped back into the cecum.

"See? Accident."

They reset the model.

The second flush left five green beads in the appendix.

The third left four.

The fourth left six, plus one blue bead that got stuck at the opening until Soren adjusted the angle and it washed away.

Maya put both elbows on the table. "The model is cheating."

"The model is plumbing," Soren said.

Across the room, a family of paper lungs inflated and collapsed with a sigh. A mechanical heart thudded in a red box. Someone tested an artificial hand, and its fingers curled around a paper cup so gently the cup did not crumple.

The future, in this room, clicked and breathed and waited to be understood.

Maya took the appendix off.

The anatomy screen beside their table flashed yellow. A calm recorded voice said, "Model incomplete. Appendix missing from cecum."

"Fine," Maya said. She clipped it back on upside down.

The screen flashed yellow again. "Model inaccurate. Appendix attaches to cecum."

Soren almost smiled. "The machine is picky."

"The machine is circular," Maya said. "The surgeon said useless. The screen says necessary."

"Necessary to the shape. Not necessarily to the job."

Maya was already moving. She pulled the fuzzy strip out of the colon and cut a smaller piece. She pushed it deep inside the appendix with the end of a cotton swab.

"If bacteria cling to slime layers," she said, "then give the weird side room a better wall."

Soren did not ask why. He handed her the green beads.

They seeded the colon again. Green everywhere. They added blue at the top. Maya pumped hard, harder than before. The water roared through the clear tube. Beads rattled into the waste cup like tiny hail.

When the rush stopped, the colon was nearly empty.

The appendix was not.

Green beads clung in the fuzzy dark of it, packed against the curve, out of the main flood.

No one spoke.

Thirty seconds earlier, the appendix had been a dangling mistake. Now the model looked less like a tube and more like a town after a storm, with one small room off the road still holding people inside.

Soren touched the place where the appendix joined the cecum. "It survives because it is not where the flood is strongest."

Maya looked at his paper notebook beside the blinking tablets. Then she looked at the little pouch.

"Good hiding place," she said.

"Good waiting place," Soren said.

The surgeon returned carrying a plastic skeleton hand by one finger. "Please tell me yours is simple."

Maya pressed the pump again. The colon emptied. The appendix stayed green.

The surgeon stopped chewing the last bite of her granola bar.

Soren opened the tiny clamp at the base of the appendix. Slowly, with the next trickle of water, green beads rolled back into the empty cecum and then into the colon.

"Beneficial gut bacteria," Soren said. "After a bad intestinal illness washes a lot away, the appendix can act like a reservoir. A safe house. Not the only one, but one."

Maya added, "It is useful because it is off to the side."

The surgeon looked at the old sign on their table. It said USELESS LEFTOVER in block letters.

"I learned that sign in medical school," she said.

"Maybe they had bad plumbing," Maya said.

The surgeon laughed once, then took the sign and turned it over. "Families arrive in seven minutes. What do you need?"

"More green beads," Maya said.

"And a better name," Soren said.

They made the new sign together. Soren drew the cecum carefully. Maya drew the appendix too large, on purpose, a small curved room with a door. They did not write useless anywhere.

When the first families came in, the heart was still thudding. The lungs were still sighing. The artificial hand waved at nobody. At Maya and Soren’s table, people leaned close to see the tiny appendix because Maya had made the rest of the intestine clear and bright and the little side pouch shadowy.

A man in a blue hat asked, "Why would the useful part be tucked away like that?"

Soren picked up the pump.

Maya said, "Because sometimes the main road is the dangerous place."

She added blue beads and green beads. Soren checked the clamp. The surgeon stood behind the visitors, holding the skeleton hand against her chest like it had surprised her.

Soren lifted the flush gate. Water roared through the clear colon and swept the green beads away. Maya waited with her thumb on the tiny clamp. When the tube ran empty, she opened the side pouch.

From the little room off the road, the first green bead rolled out.