“Everyone okay?” Mal asked.

“Never better,” said Genya shakily.

David raised his hand. “I’ve been better.”

We all started laughing.

“What?” he said.

“How did you even do that?” Nadia asked Zoya. “That trick with the sound?”

“It’s just a way of creating an acoustical anomaly. We used to play with it back in school so we could eavesdrop on people in other rooms.”

Genya snorted. “Of course you did.”

“Could you show us how to do it?” asked Adrik.

“If I’m ever bored enough.”

“Squallers,” Mal said, “are you ready to move again?”

They all nodded. Their faces had the gleam that came with using Grisha power, but I knew they must already be approaching their limits. They’d been keeping tons of rock off us for half a mile, and they’d need more than a few minutes of rest to restore themselves.

“Then let’s get the hell out of here,” Mal said.

I lit the way, still wary of what surprises might be waiting for us. We moved cautiously, Squallers on alert, twisting through tunnels and passages until I had no sense of which way we’d gone. We were well off the map that David and Mal had created.

Every sound seemed magnified. Every fall of pebbles made us pause, frozen, waiting for the worst. I tried to think of anything but the weight of the soil above us. If the earth came down and the Squallers’ power failed, we would be crushed and no one would ever know, wildflowers pressed between the pages of a book and forgotten.

Eventually, I became aware that my legs were working harder and realized the grade of the floor had turned steep. I heard relieved sighs, a few quiet cheers, and less than an hour later, we found ourselves crowded into some kind of basement room, looking up at the bottom of a trapdoor.

The ground was wet here, pocked by little puddles—signs that we must be close to the river cities. By the light from my palms, I could see that the stone walls were cracked, but whether the damage was old or the result of the recent explosions, I couldn’t tell.

“How did you do it?” I asked Mal.

He shrugged. “Same as always. There’s game on the surface. I just treated it like a hunt.”

Tolya pulled David’s old watch from the pocket of his coat. I wasn’t sure when he’d acquired it. “If this thing is keeping time right, we’re well past sunset.”

“You have to wind it every day,” said David.

“I know that.”

“Well, did you?”

“Yes.”

“Then it’s keeping time right.”

I wondered if I should remind David that Tolya’s fist was roughly the circumference of his head.

Zoya sniffed. “With our luck, someone will be setting up for midnight mass.”

Many of the entrances and exits to the tunnels were found in holy places—but not all of them. We might emerge in the apse of a church or the courtyard of a monastery or we might poke our heads out of the floor of a brothel. And good day to you, sir. I pushed down a crazed giggle. Exhaustion and fear were making me giddy.