A guttural growl vibrated through my skull as a clawed foot slashed at the wood. It caught the bell of my sleeve, ripping it completely off. I rolled to the side just as a heavy head came crashing down, burying powerful jaws in the thick planks beside me.

My instinct was to run, but there was nowhere to go. Instead, I ended up with handfuls of wet, stinking fur as I fought to keep the slippery head against the table, where it could chew on wood instead of on me. But even partly trapped, it was strong and ferocious.

Claws raked my dress, and for once I was grateful for Augustine's exuberant use of fabric. The heavy, waterlogged folds kept my skin from getting shredded as badly as the material. Powerful legs scrabbled on the slick tabletop, trying to find purchase, while my knives stabbed it over and over, the little blades punching holes that splattered hot blood over my chest, arms and face.

Despite my efforts, the creature finally tore free of the wood by ripping out a large chunk of it. It turned with serpentine quickness, reared up on hind legs directly over me—and was stabbed in the back by a dart. The iron wedge exploded out of its midsection and over my head, soaking me in gore as it passed.

I slid back into the water, trying to stifle a scream. It was easier than usual, thanks to the bubble of panic that had lodged somewhere between my stomach and throat. My fingers tightened convulsively on the slab of wood while I gasped and choked and tried not to move. I really didn't want to end up like whatever had just tried to eat me.

A moment later, Caleb's head broke the surface. He still had the sphere clutched in his fist as he heaved and coughed and brought up what looked like a quart of muddy water. "You all right?" I asked when I could speak.

The light glinted off the drops beading his buzz cut, silver on black, and the dark trickle of blood sliding down his temple. "Better than it is."

"You killed it."

"Hope so." His smoker's growl was a little more prominent.

"Good," I said shakily. "What was it?"

"Don't know." His eyes focused on something just behind me. "You kill that?"

I looked at him blankly before following his gaze to where my knives had impaled something furry and scaly and really, really wrong to the tabletop not three feet away. I shrieked and jerked back, and the knives followed the motion, letting go of their prey to be reabsorbed by my bracelet. And untethered by anything, the gory body slid slowly off the tilted side of the table.

Caleb pushed it aside, giving the darts a target other than us. We crouched in the dark, hearing the steady thud of metal into meat, until Pritkin surfaced at my elbow a few moments later.

Pritkin popped up at my elbow a moment later. He gasped in a lungful of air before catching sight of the dark hulk of the creature floating a few yards off. "What is that?"

"The welcoming committee," Caleb said straight-faced. "What did you find?"

"The corridors are flooded, but the nearest staircase is clear from about halfway up. It's doable."

"If we make it that far," Caleb growled, glancing upward.

As if it had heard him, the chandelier finally stopped rotating. Without the scrape of metal on metal, the chamber was almost silent. The only noise came from the water lapping against the walls and splashing into the flood. And the even softer sounds of wretched sobbing.

Both men tensed and Caleb waved the light around, but of course he didn't see anything. "What is making that noise?" Pritkin demanded.

"Augustine's idea of a joke. He spelled my dress," I told him.

Pritkin sized me up for a moment. "Take it off."

"What?"

"I can use the charm on it to confuse the wards."

The arm that wasn't holding on to the table crossed protectively over my chest. "But. . I'm not wearing anything underneath."

"Nothing?"

"Maybe panties." At least I thought I was. After the day I'd had, I wasn't really sure.

Pritkin pinched the bridge of his nose. "Would it help at all to remind you that I've seen it?"

"Once! A long time ago! And it was really, really dark!"

He started to say something and then seemed to catch himself. "Give me what your maidenly modesty can spare, then."

"Why do you need it again?"

"Oh, for—Give me the damn dress and I'll show you!" Before I could reply, he pulled out a knife, reached underwater and sliced off what felt like half the skirt.

"Why do these plans of yours always involve me getting naked?!" I whispered viciously—to no one because he'd already gone.

In a minute, another row of darts tore loose with the earsplitting sound of shredding metal. They ignored us in favor of targeting Pritkin and the row of sobbing fabric he was sticking in cracks and crevasses along the wall. The material was fast turning into tatters as dart after dart hit it, fracturing the stone behind and letting in what could now literally be called a flood. Between the crying dress and the rushing water, the wards suddenly had plenty to shoot at besides us.

"Come on!" Caleb tugged me out of the protective shade of the table. "That charm won't last forever!"

We swam full out for the far wall, staying underwater as much as possible. The wards had rotated away from us to fire volley after volley in Pritkin's direction, their rusty clanging a cacophony in the enclosed space. I peered into the gloom every time we surfaced, desperately trying to see him, but the light was just too low. The most my eyes could pick out were brief flashes off multiple knifelike edges, as dozens of darts were flung through the air.

I was still looking when I swam into the wall. Caleb steadied me and then ducked underwater for a minute. "The door is just below us," he told me after surfacing. "John was right: the corridor is completely flooded. But the stairs are only about fifteen feet to the left." He started to dive again, but I caught his arm.

"John will be all right."

I stared at the hail of darts that were still being unleashed behind us. Chunks the size of boulders had been carved out of the wall where they hit, with a spiderweb of cracks radiating out from the larger ones. "How could anyone be all right in that?"

"Trust me—I know him."

"So do I," I said savagely. "That's what's worrying me!" A crack echoed through the room, loud enough to momentarily drown out the wards. And the next second, a huge piece of the wall gave way, dropping almost whole into the flood like the calving of a glacier. It hit the water with the granddaddy of all belly flops. The resulting wave reached even us, slamming me back into Caleb.

"Don't move," he whispered as the nearest chandelier rotated our way, drawn by the disturbance of the water. It swiveled this way and that, sending darts slicing through the waves crashing all around us.

"We're going now," Caleb said in my ear. "Okay?"

I searched the dark one more time for any sign of Pritkin, but there was nothing. Damn it! I should never have left him!

"Cassie!"

"Okay." It came out more like a croak. I'd never felt so helpless.

That was the longest fifteen feet of my life. I ducked underwater, following the dim light of Caleb's sphere through the black rectangle of the doorway. And almost immediately I realized I had a problem. I'd planned just to follow Caleb, but although I knew Caleb was somewhere right up ahead, I couldn't see him. There was too much dirt and debris in the water, choking off what little light his sphere gave out and leaving the flooded corridor almost pitch-black.

I quickly lost all sense of direction, unable to find up or down in the dark, freezing water. Everything looked the same, and the burn in my lungs was making it hard to concentrate. My pulse pounded sickeningly at my temples, and a flood of cold ran through my limbs, turning them sluggish and slow to respond to my brain's frantic commands.