“What’s that?” It was Jasper, his voice a scared whisper, pointing. Aaron stepped forward; they were all crowding around Call now, in front of the open barn door. Call looked where Jasper was pointing. At first he saw nothing; then, staring harder, he caught sight of something slipping around the side of one of the cars.

Tamara gasped. The thing was rising, seeming to grow from moment to moment, swelling right before them. It gleamed under the moon — a monster made of slick metal, dark and wet-looking, as if its surface were rubbed with oil. Its eyes were like two massive headlights, flashing in the darkness. And its mouth — Call goggled as its massive jaw unhinged, lined with rows of sharklike metal teeth, and then closed on the hood of an ancient Citroën.

The car made a horrible crunching sound. The creature threw its head back, swallowing. It bulged outward as the car disappeared into its vast maw. A moment later the car was gone and the creature seemed to grow more gigantic.

“It’s an elemental,” Tamara said nervously. “Metal. It must be drawing power from all those cars and junk.”

“We should get out of here before it notices us,” Jasper said.

“Coward,” Call chided. “It’s an elemental on the loose. Isn’t dealing with it our job?”

Jasper threw his shoulders back and glared. “Look, that thing has nothing to do with us. We’re supposed to defend people, but I don’t want to die defending your dad’s hoarding. He’ll be better off without all these cars — if he’s not executed for being in league with the Enemy, which is a big if — and we’ll be better off out of here!”

“Shut up,” Aaron said. “Just shut up.” His hand rose from his side. The metal on his wristband glowed. Call could see what looked like a shadow starting to rise from his palm, half enveloping his hand.

“Stop!” Tamara grabbed Aaron’s wrist. “You haven’t been taught to use the void properly. And the elemental’s too big. Think of the size of the hole you’d have to open to get rid of it —”

Now Aaron looked angry. “Tamara —”

“Uh, guys,” Jasper interrupted. “I get that you’re arguing, but I think it just noticed us.”

Jasper was right. The headlight eyes were gleaming in their direction. Tamara let go of Aaron as the creature began to move. Then, unexpectedly, she whirled on Call.

“What are we supposed to do?” she demanded.

Call was too surprised to be asked for instructions to answer. Which was fine, because Aaron was already talking. “We have to get to Mrs. Tisdale and protect her. If that thing has just stumbled on this place, then maybe it will eat some cars and go in peace. But if it doesn’t, we have to be ready.”

“Metal elementals are rare,” Jasper said, grabbing up Tamara’s pack. “I don’t know a lot about them, but I know they don’t like fire. If it starts coming for us, I’ll throw up a fire screen. Okay?”

“I can do that,” Tamara snapped.

“It doesn’t matter who does it!” Aaron said, exasperated. “Now come on!”

They all started to run toward the farmhouse, Call lagging slightly behind, not just because his leg was hurting but also because he was worried about Havoc. He wanted to call out to him, make sure his wolf was safe, but he was worried it would call the elemental’s attention. And he wasn’t sure he could outrun it if it came to that. Already, Tamara, Aaron, and Jasper were outpacing him.

The creature was still moving, sometimes half-hidden by cars, sometimes horribly clear. It wasn’t moving fast, more like a cat stalking its prey. Slowly it came, growing with each mouthful of metal it took.