An hour later, Emilie stood at the mouth of a drainage ditch staring into the gaping blackness. She'd asked for this. No way was she going to back out now.

The midmorning sun blazed down. Her jeans clung to her legs, and her sweating head itched under the cap.

"It's cooler inside." Nathan checked his backpack for supplies. Chris, Ronson, and Avery waited at the mouth of the tunnel, armed and ready. The cavalry was out in full force today.

"I hate this place," Chris said. "I'd rather live on the streets."

"You say that now, but spend a week or two in the baking sun with no shelter." Nathan zipped the backpack and hefted it onto his shoulder. "This place might look pretty good."

"I don't give a s.h.i.t how good it looks. My nose hair's on fire."

"If you can't hack it, stay behind."

Chris kicked a bottle across the concrete. It landed in the drain with a splash. "Like I'm going to let you have all the fun."

"Emilie, stay with me," Nathan said. "Don't wander off on your own. Don't approach anyone by yourself."

"I got it."

"Do you? Creepy is the obvious thing about this place. There's also the stink, the filth, and the sadness. You're going to see people living in conditions you never imagined, and most of them seem perfectly content. This isn't like a trip to the zoo."

"I'm not that naive. Can we please get on with it?"

He stared back at her, his lips thinned. She didn't want to fight with him. His agreeing to take her into the tunnel had shocked her, and they hadn't had a moment alone since the confrontation in Avery's office yesterday.

"I know you're angry with me." Emilie lowered her voice. "But thank you for doing this."

"Not angry. Just worried."

"I'll be fine. You'll be right beside me."

"Yeah, but what about tomorrow and the next day?"

"I don't know. But we'll figure it out together, right?"

"Right," he whispered.

An electric sensation hotter than the scorching sun pa.s.sed between them and crackled in her ears. "Let's go before I get you in serious trouble."

They joined the others at the culvert. Mere feet above them on I-15, traffic zoomed by at a steady pace. Vehicle exhaust and the scent of rotting trash drifted over their heads.

Brown water pooled around her feet. Fat water bugs skated on the surface in search of food. Emilie's mouth curled in disgust. She hadn't thought about the bugs.

"Best not to look down," Chris said. "Keep your light ahead of you."

"It's really dark in there," Ronson warned. "Stay close."

Emilie's resolve faltered as they reached the tunnel entrance. She peered over Nathan's shoulder at the triad of pipes branching off in different directions. Big enough for a tall man to walk through easily, their murky blackness was as foreboding as anything Emilie had ever experienced.

She pressed the b.u.t.ton on her flashlight and shined it into the abyss. Four other lights joined hers, and the inner concrete walls of the tunnel became visible. Graffiti was scrawled over them. A bevy of c.o.c.kroaches scuttled away from the intrusion.

Emilie followed Nathan and Chris across the threshold and tried not to give in to the claustrophobia that immediately wrapped itself around her. The tunnel was wide enough for two people to walk side-by-side with room to spare, but the sense of being closed in was amplified by the heavy silence. The group's splashing feet echoed and then faded away into the never-ending darkness. How deep were the channels?

A smell resembling the rotten egg she'd once dropped on Evan's porcelain kitchen floor hit her full force. Emilie's hand flew to her mouth.

"Something else, ain't it?" Chris's voice broke the uneasy stillness. "I liken it to a men's locker room filled with dirty socks and jocks after a five-mile run."

"If you guys stink this bad, you need medical help. Christ."

"At least my stomach's not rumbling anymore," Nathan said.

"s.h.i.t, I could eat," Chris said.

"You can always eat. You're like a human trash compactor."

"Do you guys have any idea where to find Snake?" Avery's voice came out m.u.f.fled.

Chris turned around and shined his light on Avery. "Dude, that hanky over your face ain't gonna stop the stink. Embrace it. Feel the burn."

Emilie laughed as the knot in her stomach began to uncoil. The banter made it easier to forget why she was here.

Her right foot suddenly came down on something hard in the shallow stream of water. She stumbled into Nathan's back before an arm caught her from behind.

"Watch it," Avery said. "Last thing you want to do is fall face-first in this."

"Sorry." Emilie clutched the hem of Nathan's thin T-shirt. "I tripped over something."

She shined her light into the two-inch-deep water. A pair of soulless black eyes stared back at her. A child's doll lay abandoned, its once-blond hair soaked with the filthy water.

Children lived down here?

Emilie couldn't speak.

"Let's keep moving." Nathan's strong hand closed around hers. Emilie clutched it gratefully.

"Angel's camp was here." Nathan cast his light on the crude map he'd made. "Snake's abandoned camp was here."

"If Snake's old camp has someone else in it, he's not going back," Ronson said. "He'll probably start a new one. Safe bet it would be somewhere in the vicinity though. He knows the area."

The air grew thicker as they moved farther into the darkness. The sound of dripping water gradually faded away. They pa.s.sed several camps, some spread out and others b.u.t.ting against one another. A few were empty, but most of the inhabitants were home. None had any news of Snake.

"Kinda feels like catacombs," Chris said. "You know, like the ones underneath Paris filled with old bones?"

"Yeah, except the catacombs have more light, and no one's living in them," Nathan said.

"Obviously. No one wants to live with a dead body, no matter how old it is."

"Not true. In the Philippines, the poor live in the cemeteries. They sleep right on top of the crypts. Eat there, too."

"How the h.e.l.l you know that?"

"National Geographic," Nathan said.

"Nerd."

The narrow tunnel opened up into a wider area. An elaborate camp had been set up along the right side of the channel. Dark vinyl shower curtains were strung on a wire for two makeshift walls. A double bed sat atop heavy wooden pallets balanced on several plastic crates. Two rusting hotel luggage carriers served as a wardrobe, and an old rocking chair was propped up on another wooden pallet. Plastic totes were stacked against the concrete wall. A crudely made wooden shelf housed books and personal items.

"Unbelievable," Emilie murmured.

Dimly lit by four camping lights, the small area was no larger than three hundred square feet. A woman lay on the bed reading a copy of Cosmopolitan.

She dropped the magazine and grabbed a baseball bat off the nearby shelf. "What do you want?"

"We're looking for someone." Nathan held up his badge.

"I ain't seen them."

Avery moved closer. The woman jumped off the bed. Pale and thin, she looked like a long-time resident. Emilie's shock turned to sympathy. How could anyone live this way?

"I didn't invite you into my home," she yelled. "Get out of here."

"Sorry." Nathan pulled Avery past the boundary set by the curtains. Avery jerked his arm away.

"You're not in any trouble," Nathan said. "We're looking for someone who may be a witness to a violent crime."

"I ain't a narc."

"We're not asking you to be," Ronson said. "We're looking for Snake. He may know a man who attempted to kidnap a woman and is still stalking her. Snake's not under suspicion. We just need to find out what he knows."

"Right. I tell you where to find Snake, and you all haul him in. Then I'm the bad guy. Narcing don't go over good down here."

"Ma'am, I promise you we have no intention of arresting Snake. He probably doesn't even realize he's got information."

"Can't help you."

"Please." Emilie stepped forward. "I'm the woman they're trying to help. My stalker is out there. Snake is the only one who can help us. If you know anything, please tell us."

"You came into the drains to look for Snake?" The woman looked Emilie up and down.

"Yes. Do you know where he is?"

"Your friends gonna keep their promises? No arrests?" She lowered the bat.

"You have my word," Ronson said.

"What you gonna give me for it?" The woman stuck out a dirty hand.

Nathan dug into his pocket. "Here's twenty bucks. Now tell us about Snake."

The woman shoved the twenty into the dingy bra peeking out from underneath her dark tank top. "Saw Snake a few days ago. He's set up east, farther from the Strip. He likes his privacy."

"How do we get there?" Avery asked.

"Just follow this tunnel straight east until it forks again. Go right a hundred feet or so. His place is the first one you'll see."

"Is he usually around during the day?" Nathan asked.

"He credit hustles at night. Sleeps during the day. Should be there. Don't tell him you got information from me."

"We won't," Nathan said. "Thank you."

More camps followed. Some had double beds, and blankets hung to separate rooms. Others consisted of nothing more than a cot and a few crates.

Many of the inhabitants lounged outside their living areas on rickety lawn chairs and cinder blocks. Some eyed the group with contempt. Others smiled and waved as though they were sitting on their front porches in a run-of-the-mill suburban neighborhood.

"Ya'll lost?" asked a skinny man with closely cropped hair, and a bottle of Natural Ice beer dangling from his hand.

"Nah, man," Chris called back. "Thanks."

Her breath grew shorter as the darkness and claustrophobia became thicker with every step.

"It's all right." Nathan's hand closed around her elbow. She wanted to burrow into his arms. "Not too many people go this deep, and we're armed."

"It's not that. I feel like I'm trapped in a box."

"Think of it as a funhouse," Chris said. "In a really messed-up carnival."

They reached the fork. Nathan cautiously led the way right.

"I didn't think it could get any darker in here," Chris said. "But I was wrong. It's pitch black."

"And quiet," Nathan answered. "Definitely private."

"I'm taking my gun out." Avery's voice wavered. "I don't like the way this place feels."

"Keep it hidden," Ronson said. "We don't want to spook him."

A few yards ahead, a tiny flame fought against the blackness. The small residence came into view. This camp only had a twin bed on pallets and a couple of battered totes on either end. A sleeping bag and pillow were neatly placed on the bed. A metal chair sat next to what looked like a single-drawer filing cabinet. The cabinet served as a table, and a camp light was nearly engulfed by the darkness.

"Where is he?" Chris cast his flashlight beam across the dark tunnel. "Light's on. Surely he's close."

"I am," a gruff voice came from the abyss. "What the h.e.l.l are cops doing this far into the tunnels?"

"How'd you know we were cops?" Chris asked.

"You're wearing an LVPD shirt, stupid."

"You can see that?"