“We gotta go, Sam,” I say. “We don’t have the time.”

“They’re torturing humans, John,” he says when we finally reach the central hive. “Human beings.”

“I know,” I say, scanning the mammoth room for the quickest route down. There are Mogs everywhere, but I’ve become so used to passing by them that they no longer bother me. And besides, something tells me I’m about to find far scarier things than scouts and soldiers.

“People with families who probably have no idea where they’ve disappeared to,” Sam whispers.

“I know, I know,” I say. “Come on, we’ll talk about it when we’re out of here. Maybe Six will have some sort of plan.”

We sprint around the spiral ledge and start down a tall ladder, but find it’s nearly impossible to do so while holding the person’s hand above you. I look down. There’s still a far way to go.

“We have to jump,” I say to Sam. “Otherwise it’ll take ten minutes to get all the way down there.”

“Jump?” he asks incredulously. “It’ll kill us.”

“Don’t worry,” I assure him. “I’ll catch you.”

“How the hell are you going to catch me if I’m holding your hand the whole time?”

But there isn’t time to argue or debate. I take a deep breath, and leap from the ledge a hundred feet above the cave’s bottom. Sam howls, but the continuous clatter of manufacturing drowns out the noise. My feet hit the unyielding stone, and the force knocks me backwards; but I keep a firm grip on Sam, who lands on top of me.

“Never again are we doing that,” he says, standing.

The ground floor is so hot it’s nearly impossible to breathe, but we sprint around the green lake towards the massive gate keeping the beasts locked away. When we reach it, a cool wind gusts through the bars, and I realize that the regular blasts of fresh air prevent any of the gas from entering this tunnel.

“John, I really don’t think there’s any time left,” Sam pleads.

“I know,” I say, letting a group of ten or so Mogs exit ahead of us.

We enter a dark tunnel. The walls look mucus covered, and barred chambers line each side of the shaft. Down the middle of the ceiling ten huge industrial fans blow, all pointed towards the entry we just came through, keeping the air cool and moist. Some of the locked chambers are small, though others are large, and bursting out of them all are feral and ferocious sounds. In the cage on our left are twenty to thirty krauls jumping over one another while letting loose shrill yips. Imprisoned on our right is a pack of demonic-looking dogs the size of wolves, with yellow eyes and no hair. Beside them stands a creature that looks like a troll, complete with a wart-covered nose. In a larger cell across the way a massive piken not unlike the one who busted through the prison wall that morning paces back and forth, sniffing the air.

“We might as well not even bother with these smaller rooms,” I say. “If my Chest is here, it’ll be in the biggest room at the end of this tunnel. I don’t even want to take a guess at what kind of beast needs a door that large to fit through.”

“We’re down to seconds, John.”

“We better hurry then,” I say, pulling Sam forward while quickly taking in the different horrors corralled here: gargoylelike winged creatures, monsters with six arms and red skin, several more pikens standing twenty feet tall, a wide reptilian mutant with trident-shaped horns, a monster with skin so transparent that its internal organs are on display.

“Whoa,” I say, stopping at a group of rounded tanks and vessels, most of which are silver, though two are copper colored and lined with heat gauges. Some kind of boiler room, I guess.

“So that’s what’s keeping this place going,” Sam says.

“This has to be it,” I reply. The tallest silo goes to the ceiling, and every tank is connected with heavy pipes, spouts, and aluminum ducts. Beside the silo, a control panel is affixed to the wall with a heap of electrical wires pouring out.

“Come on,” Sam says, impatiently jerking my hand.

Together we run the rest of the way to the tunnel’s end. There’s a massive door, forty to fifty feet tall and wide, made entirely of steel. To its right is a small wooden door. It’s unlocked, and instantly I see why.

“Holy God,” Sam whispers, taking in the beast’s enormity.

I’m momentarily stunned myself, and all I can do is stare at it: a hulking mass slumped in the room’s far corner. Its eyes are closed and it breathes rhythmically. The beast must be fifty feet tall when standing, and from what I can tell its dark body is shaped like a man’s, but with much longer arms.

“I want nothing to do with this place,” Sam says.

“You sure?” I ask, nudging him so his gaze leaves the monster. “Look.”

There, in the center of the room, at eye level atop a thick stone pedestal, is my Chest. And right beside it sits a second one, almost identical in appearance. Both of them there for the taking. Except for the iron bars around them, which are housed beneath a humming and crackling electrical force field surrounded by a moat of the steaming green liquid. And the slumbering giant.

“That’s not Six’s Chest,” I say.

“What are you talking about? Who else’s would it be?” Sam asks, confused.

“They found us, Sam. In Florida, they found us by opening Six’s Chest.”

“Right, I know.”

“But look at the padlock on it. Why would they put the lock back on a Chest that they probably had a hell of a time getting into in the first place? I think that one’s never been opened.”

“Maybe you’re right.”

“It could be any of ours,” I whisper, shaking my head while staring up at them both. “Number Five’s or Nine’s or anyone’s who isn’t dead yet.”

“So they stole the Chest and didn’t kill the Garde?”

“Like they did with me. Or maybe the Mogs caught one of them and they’re being held here like Six was,” I say.

Sam doesn’t get a chance to answer, because just then the alarm on his wristwatch begins to beep. Three seconds later it’s followed by the whine of a hundred sirens echoing off the walls of the cave.

“Aw hell,” I say, turning my head. “I can see you, Sam.”

He nods, a panicked look on his face. He lets go of my hand. “I can see you, too.”

When I look over Sam’s shoulder, the beast’s eyes have come open—blank and white—narrowing in our direction.

Chapter Thirty

THE GUNFIRE MAKES MY EARS RING LONG AFTER it’s stopped. Smoke rises from the end of the barrel, but Crayton wastes no time and drops the gun’s clip and snaps another in place. Heaping mounds of ash have given the air a thick haze. We stand waiting, Ella and I behind Crayton. He keeps the gun raised, his finger hovering on the trigger. A Mogadorian climbs into the entryway with a cannon of his own, but Crayton fires first, cutting him in half and hurling him backwards. The Mogadorian explodes before he hits the wall. A second jumps into view, wielding the same flashing weapon that tore my shoulder downstairs, but Crayton disposes of it before any light comes forth.

“Well, they know where we are now. Come on,” he yells, rushing forward and down the stairs before I can offer to float us out the window. Ella and I follow, still holding hands. Crayton stops after the second curve of the stairwell, pressing his fingers to his eyes. “There’s too much ash in my eyes. I can’t see anything,” he says. “Marina, take the lead. If there’s anything up ahead, yell and get the hell out of the way.”

I keep the Chest tucked beneath my left arm and Ella stays in the middle, holding my hand and Crayton’s. I lead them down and out the broken oak door just as the tower above us explodes.

I scream, ducking down and pulling Ella with me. Crayton instinctively begins firing. The gun unloads a rapid stream of ammunition—eight to ten bullets per second—and I can see an entire group of Mogadorians drop. Crayton stops firing.

“Marina?” he asks, nodding his head forward without seeing me.

I turn and study the hallway, thick with ash. “I think it’s clear,” I say; and the second the words leave my mouth, a Mogadorian leaps out of an open doorway and fires, sending a flashing white meteor raging towards us too bright to look at. We drop just in time, and the white death misses us by a hair. Crayton quickly lifts the gun and returns a barrage of bullets, killing the Mogadorian instantly.

I lead us forward. I have no idea how many of them Crayton just killed, but the ash stands thick on the floor, covering our feet and ankles. We pause at the top of the steps. Light from the windows comes through the fading ash, and Crayton has cleared his eyes. He takes the lead position, clutching the gun tightly to his chest while staying hidden behind the corner. Once we turn, all that separates us from the door leading outside are these steps, a short hallway, the back of the nave, and the main vestibule. Crayton takes a deep breath, nods his head, and then turns, dropping the barrel of the gun, ready to fire. But there’s nothing to fire at.

“Come on,” he grunts.

We follow him and he escorts us across the nave’s rear, which is black with fire damage. For a brief moment I glimpse Adelina’s body, looking small from as far away as we are. My heart aches seeing her. Be brave, Marina, her words echo.

An explosion erupts against the outside wall on our right side. The stones blow inward, and I instinctively lift my hand and prevent any of them from hitting Ella and me. But Crayton gets hit hard, and he smashes against the wall to our left, landing with a grunt. The gun rattles away from him, and a Mogadorian enters the cathedral through the newly created hole. He’s holding a cannon; and in one fluid motion, I heave the Mogadorian backwards with my mind, bring Crayton’s gun into my hand, and pull the trigger. The gun’s kick is a lot harder than I expected, and I almost drop it; but I recover quickly and keep firing until the Mogadorian is reduced to ash.

“Here,” I say, pushing the gun into Ella’s hands; and in the comfortable way she takes it, I can tell she’s no stranger to firearms.

I rush to Crayton. His arm is broken, and blood seeps from gashes on his head and face. But his eyes are open and he seems alert. I slap my hands on his wrist and close my eyes, the iciness crawling over my body and extending to Crayton. I watch the bones in his arm move under the skin, and the gashes on his face seal and disappear. His chest expands and contracts so fast I think his lungs are going to explode, but then he’s calm again. He sits up and moves his arm fluidly.

“Nice job,” he says.

He takes the gun from Ella, and we climb through the hole in the wall and out into Santa Teresa’s front grounds. I don’t see a single person as Ella and I run ahead and pass through the iron gates while Crayton sweeps his gun back and forth, looking for any reason to fire it. My eyes are drawn over Crayton’s left shoulder to a quick burst of red from the cathedral’s roof. With a loud blast, the discharged rocket surges towards Crayton. I stare at the rocket’s tip and raise my hands, concentrating harder than I ever have, and at the very last instant I’m able to slightly alter the rocket’s path. It misses him and angles off towards a mountain, where it hits it with a plume of fire. Crayton rushes us through the gates with eyes alert and the gun aimed. He pulls up and spins around.