"Phew!" said Zuzzara, waving a hand in front of her sensitive orc nose.

"It's not that bad," said Ivy, scraping her boots against a tree root. She had done the same thing earlier when she was leaving the camp, using a rock to rub off the worst of the muck. She guessed she must have missed a spot or two.

"Hush!" said Mumchance. A worried look wrinkled his scarred face. The dwarf relied more on his hearing underground than any other sense. He claimed that he could usually hear danger before he saw it. Wiggles whined at his feet, and the dwarf picked up the little dog and popped her into his pocket. It was an old habit, but it startled most people to see the dog's sharp white nose and large pink ears suddenly emerge from the pocket of a stout, gray-bearded dwarf.

"Phhstt," said Ivy, brushing the dirt off her face and trying to stifle a second sneeze. It came out as a loud snort.

Mumchance dropped to one knee to get his head closer to the ground and patted the earth with one gnarled hand. "There's something here."

"Yes, I smell something below us," said Gunderal.

"What?" asked Ivy.

"Water," said Gunderal. Another gift from her genasi ancestors, Gunderal's sensitivity to water's proximity was as strong, or stronger than, her ability to detect magic.

"Water, running fast, and the earth moving with it, unable to hold it, breaking away as old rocks shift," Kid's voice echoed eerily in the tunnel. Like Gunderal, Kid often sensed things that the others couldn't see or hear or smell, especially changes created by magic. No one knew what ancestor had given Kid that ability-probably the same one who had left him both the little ivory horns hidden under his dark curls and the fine pair of hooves at his other end.

Ivy shuffled her feet. Mumchance was right: the ground did feel soft under her feet, almost like stepping on something rotten. She looked back to the entrance. They could go out, maybe probe for another way into the tunnel. This spot was too soft. Look at Sanval, she thought. The weight of his armor was causing him to sink into the dirt; it was almost to the level of his ankles. The same thing was happening to Zuzzara, trying to sidestep cracks growing in the tunnel's floor. Ivy realized what she was seeing. "Oh no!" she yelled. "Get back! Get back!"

She tried to pull Mumchance back from a suddenly appearing crack, and pulled too hard. He stumbled into Gunderal, who grabbed at Zuzzara, who swung around and got her shovel entangled in Sanval's sword, who fell heavily forward, almost crushing Kid beneath him. They all swayed together and began to fall. They kept falling as the tunnel floor collapsed beneath them.

Ivy grabbed for all of them, trying to save everyone and failing to get a grip on anyone.

The ground crumbled below her feet. She plunged into darkness, into the swift, cold water below. She fell fast and hit the water hard. The icy current shocked her silent as the river pulled her under.

Ivy surfaced, coughing and spitting out water that tasted of mud and ice. The strong current surged around her hips. The water was cold, pulled-out-of-the-mountain cold, pulled-out-of-the-heart-of-the-earth cold. It felt cold. It smelled cold. It even sounded cold, the river's hissing whisper running swiftly around her.

She could barely keep her balance. The sodden leather breeches and damp padded tunic that she wore under her mismatched pieces of armor added to her misery. The weight of her sword on her back was her only comfort. The crisscross of leather straps keeping the scabbard high on her back still held the blade safe. She checked the side of her belt. Her dagger was still secure in its sheath. She thought about loosening the ties on her belt dagger so she could use the knife quickly. But in the water, with her footing so unstable, she decided that she might drop any weapon that she drew.

Her braid lay sodden across the back of her neck. With bare hands she reached up and confirmed that she had lost her leather cap. She swore a little. She liked that cap. Being secondhand, it was nicely softened for the most comfortable fit possible. Now it was gone, and Ivy would have to find another one. Maybe she would get lucky and fall over another dead body wearing a cap.

Luckily, her gauntlets, armored and lined with sheepskin, had survived the fall and were still stuck in her weapons belt. She pulled them on to protect her hands from the cold water. Besides, the scaled armor on the knuckles of her gloves made a formidable weapon if something jumped her before she could draw her blade.

Ivy stood in the darkness, with water hissing past her, and blinked. She blinked again. It was still pitch black, and she couldn't see anything. She patted her pouch. She had her tinder and flint but no candles. The icy current hissed past her hips and she heard a faint splashing sound farther down. She tried a hesitant step forward. It felt like she were moving downhill. Ivy lost her footing, slipped, and slid under the water again.

When she surfaced, cursing steadily, the water sloshed off her. The sound of her splashing progress made it impossible to judge what direction she was heading. The river was not deep, just bitter cold as if it ran underground from a mountaintop glacier. Freezing to death seemed more likely than drowning. Ivy started moving, deciding it made no sense to stay still and shudder herself into pieces. If she ran into any sort of enemy-a hobgoblin or an orc seemed likely with a city full of them nearby-she wasn't sure how well she could swing her sword while shivering.

With no light, she relied on her less-than-perfect human hearing to get her bearing. She listened for her friends but could hear nothing save the increasing howl of the river rushing past her. Moving against the current pulled her further off balance, so she decided to wade downstream, hoping to hit some type of bank. She yelled and waited to hear some answer, but her own yells boomed in echoes and confused her sense of direction more. Low ceiling, Ivy guessed, and rock all around her.

Her boots slipped on the rocky bottom, and she half-fell, half-floated. Getting her feet under her, Ivy realized that the water was creeping up her chest. She needed to find dry land fast. Surging forward, she clanged against a metal grate. The shock jarred her through her armor.

With another curse, Ivy began to feel along the grate. Her armored gloves scraped across the grate with a piercing screech of metal on metal that made her wince. The metal grid rose higher than her head. Knowing that she could not get any wetter, Ivy drew a deep breath and dived. Feeling under the water, she found the grate extended down to the river bottom, leaving only a hand's width of space between it and the stone.

Resurfacing, she felt along the grate, all the time whistling as loud as she could past chattering teeth, being half-winded and steadily more chilled by the water. She might not be able to hear her friends, but she knew that if they were in range, they should be able to hear her. Being right-handed, Ivy groped toward the right along the cold metal.

Out of the corner of her left eye, she saw a faint glimmer of light. The light jerked and weaved toward her. Flattening her back against the grate, Ivy drew her sword from her dripping scabbard. She waited where she was, to see if it were friend or foe that advanced upon her.

A high yip-yap-yap sounded from the source of the light. Ivy sighed and one-handedly, over the shoulder, sheathed her sword and sneezed. The bouncing light resolved itself into Mumchance, running clumsily along the bank of the underground river, while Wiggles weaved around his ankles. When he saw her, he stopped running and bent over, breathing heavily. He was an old dwarf, and running in full chain mail and leather, also sodden with water, had left him out of breath.