Linda sat up. "It's coming from the walls," the biologist said, glancing around. "Reflecting off the diamonds." She crawled up and crossed to a wall where a section of diamond had fallen away. Scraping with the edge of a blade, she studied the rock, then turned to them with the blade upheld. It glowed a soft yellow. "It's fungus."

Great, Ashley thought. With our luck, it's probably emitting some toxic radiation.

"What a find!" Linda settled onto her mattress and wiped the blade off in a specimen bag. She wore a huge grin, talking rapidly as she worked. "This makes the fifth phosphorescent species I've found down here so far. Even the fish back at Alpha Base glowed due to the buildup of a type of fungus on their scales. But this…" She waved her arm. "This is almost worth being chased by monsters."

Michaelson sat back down and rested his rifle across his knees. "Is it worth someone dying for?"

Linda's smile deflated, and she sealed the bag.

The major's words sobered the team, and exhaustion overcame wonder. Everyone settled back to bed.

Ashley stretched and curled her wool blanket around her bare feet, retreating into a cocoon. She peeked at Ben's empty mattress. She could hear the two men mumbling quietly together as they stood watch. She closed her eyes, touching the tip of her tongue to her bruised lower lip, remembering his kiss, and fell into a dreamless sleep.

A hand on Ashley's shoulder woke her too soon. She rolled away from the lantern light.

"Wake up, Sleeping Beauty. It's your shift." Ben's lips brushed her ear. "I even made some coffee."

She moaned and pushed herself upright, rubbing at her gritty eyes. Her muscles felt like stone weights. "Thanks, Ben… coffee sounds wonderful."

He helped her stand. "It tastes like mud, but it'll crank those pretty eyelids up."

She offered him a weak grin. She noticed Michaelson was already bundling up in his blanket. "You'd better get what sleep you can. It's only a few hours until morning."

He nodded, sliding out of his boots as he sat on his mattress. "I'll be out as soon as my noggin hits the pillow."

She envied him. Her rumpled blanket never looked so inviting. Yawning, she crossed to the makeshift guard station by the camp stove. She was surprised to see Linda sitting next to Khalid. "What are you doing up?" she asked as she approached. "This is supposed to be Khalid's and my shift."

"I know," Linda said, sliding over to make room on the boulder. "But I couldn't sleep. Too excited. I wanted to run a few tests. Besides, I took a little nap and that's all I usually need."

Ashley noticed the biologist's test kit spread out on a relatively smooth table of rock. Linda raised a small vial in front of the lantern light and shook it. The phosphorescent glow in the vial increased. "Amazing," she said, then jotted a note in her logbook.

Ashley glanced at Khalid. Holding a pistol in his left hand, he cautiously lifted the hot coffeepot from the camp stove. He sloshed some of the syrupy drink into a tin cup.

Absently, Linda held up her cup for a refill, not even glancing in his direction. Almost like an old married couple at breakfast.

Once her cup was filled, Linda took a sip from her cup and grimaced. "This is awful." But she took another sip, then sighed. She sat back and glanced at Ashley. "You know, since I'm up anyway, why don't you go back to bed?"

This option hadn't occurred to her, but it made sense and was damned attractive. "I suppose if you really think that you-

Linda nodded. "You need the sleep. You should see your eyes. They're blood-red."

And they felt like it too. Ashley glanced over to where Ben was snoring. Linda didn't have to offer twice. "I'll see you in the morning."

"Before you go, though," Linda said from behind her, "there's a question that's been naggin' me."

Ashley turned back reluctantly, the pull of her mattress strong. "What's that?"

"Those marsupial creatures. They're obviously predatory. How does something like that get enough food to eat?"

She shrugged. "I don't know."

"I mean, they have to be at the top of the food chain. But who's below them? Look at the lions in Africa. To support even a small pride of lions, it takes a huge reservoir of herbivores-antelopes, water buffalo, zebras. From a biological standpoint, these beasts would need a huge supply of prey."

Ashley rubbed her sore eyes. "Yeah, I guess so."

"So, where are they?" Linda took another sip of coffee. "Where is their food supply?"

Khalid snorted. "Hell, all I know is that I don't want it to be us."

Ashley nodded. The question was intriguing. What did they hunt? From their demonstrated teamwork in the other chamber, they had a rudimentary intelligence. Almost cunning. "I'm not sure. It's a mystery that'll have to be answered by a future team."

Linda nodded. She held up a second vial of yellow phosphorescence. "So many mysteries down here…" She checked a note in her book and pursed her lips.

Ashley said her good nights and retired to her mattress. She snuggled into her blankets, still warm from her recent slumber. Sighing, she closed her eyes, but the biologist's questions nagged at her. What did they eat?

Ben struggled in his sleep, knowing he was dreaming but unable to stop it. He was in that damned cavern once again. He walked among the fruit-laden trees, red pulpy gourds drooping obscenely.

"Hello," he hollered into the grove of trees.

No answer.

He had seen an image of his grandfather the last time he was down here. In a cave. Now, just where was that? He headed in a direction that seemed familiar. He brushed past a low mass of foliage with petite blue flowers. Didn't he pass a similar bush before? It was like returning to your hometown after being gone for decades. His feet seemed to remember their previous steps.

As he approached the far wall, he knew he was going the right way. He could even see the black hole in the glowing wall. Glowing? It was the same fungus growing in the geode room. Strange.

He continued toward the wall, expecting the trees to block his way forward, like his previous visit. But this time no trees stopped him. Taking a handful of steps, he found himself standing before the wall, a soft muskiness enveloping him. The fungus was sporing little pods the size of pinheads. He brushed a hand against the wall. With the sweep of his hand, the odor became overpowering. His mind reeled. Explosions of colors flashed before his eyes. He swooned to his knees, fighting to stay conscious, but his vision swirled in fantastic eddies of colors and textures. He slipped to the floor, the back of his head exploding as it hit the ground.

A voice arose from beside him. "Benny-boy, enough of that bloody crap."

He knew that voice from childhood. It was his grandfather.

"Jesus, snap out of it, mate."

His vision cleared as his grandfather waved a twisted leaf under his nose. It smelled of mint with a hint of cherry. With each wave, the swirls of colors were wiped away, as if erased by the passing of the leaf. "There you go, Benny-boy. 'Bout time you got your bloody arse down here."

Of course, he was dreaming-but it seemed so real. He could see the spiderweb of broken blood vessels at the tip of his grandfather's nose. The tufts of white hair at the edges of his ears. The ever-present laughter in his eyes. "Granddad?"

"Who'd ya think?"

"Well, considering you're buried six feet under Aussie soil, I didn't much expect to run into you anytime soon." He pushed himself upward, the musky odor still strong, threatening to overwhelm him again. "Why are you here?"

"I've been sent to warn you."

"We know about those black beasties. You're a little late."

"Those wankers? Don't let them pests get to ya."

"Pests? Those 'pests' just about consumed our entire crew."