“Not fortunate,” demurred Wulfe, answering Aiden with a coyness that would have been more appropriate from a Southern belle in an old movie. In old movies, overacting was standard fare. “Not mere luck. I am stalking Mercy. Of course I was around, because that’s what stalkers do, or so I’ve read. It’s my new hobby.”

I stared at him, and then I coughed up some river water, which felt a lot better than that smoke had but was still not fun. Then I stared at him some more—and started shivering. It might have been the water and the night air.

With his words, Wulfe had destroyed my ability to ignore his lurking. Stalking. My friend Stefan, who was also a vampire, had warned me that Wulfe thought I was interesting. And that had been before I’d done whatever I’d done to him.

Wulfe smiled at me. To someone who didn’t know him, hadn’t seen him with enslaved victims he was slowly killing, that smile might have been sweet. But I knew better. His expression sent cold chills into my chest. There was intent in his eyes. He was hunting and I was his prey.

When I get scared, it sometimes manifests as anger. I wanted very badly to shift back to human so I could tell him what I thought about his hobby. I didn’t, though. I didn’t want to be naked in front of him. It wasn’t modesty. Naked is vulnerable in front of predators like Wulfe.

Adam moved between me and Wulfe and met the vampire’s gaze. It wasn’t something I’d have advised; vampire powers work just fine on werewolves. But I could feel Adam draw on the pack ties, so he must have done it as a deliberate show of power. I hoped he was right, that the pack had enough juice to neutralize the vampire’s magic.

Wulfe raised an eyebrow and his smile grew sharper. He stared at my mate. It felt to me as though it might have been hours, but I think it was less than ten seconds before Wulfe looked down. He was still smiling.

“Oh goodness,” he said. “A challenge. What fun.” He looked at me. “Are you going to live? You’ll have to tell me how you ran into a field chasing a rabbit and ended up enspelled and dying.” His smile widened. “And then I saved you. You owe me for your life.”

“You will leave her alone,” said Aiden, and his voice was no longer mild.

I looked over. Aiden might be dripping with water, but he didn’t look cold, though the night air had an edge of chill that preceded true autumn. In fact, as I watched, steam was starting to rise off him. He was standing much, much too close to the vampire.

Wulfe’s eyelids lowered and he smiled. “Make me, Fire Touched. Make me.”

Aiden was too close to the vampire, too far away from Adam and me for either of us to prevent what happened next. Aiden reached out and touched the vampire’s arm, and Wulfe was engulfed in fire.

The vampire screamed, a high-pitched, terrified sound, his body so bright with fire that it hurt to look at. He flailed his arms as if trying to put the flames out—or trying to fly. He stumbled backward, away from Aiden. Sparks started drifting from his burning body, landing among the dry leaves and weeds, which started to burn.

Still screaming, Wulfe rolled on the ground, but it did no good; the flames continued undaunted. His flesh bubbled up and blackened—the air began to smell like someone was holding a barbecue. The warmth from the fire brushed my skin.

Unlike a gunshot, screams were not common around here, but no lights went on and no dogs barked. I realized that Adam must still be holding on to the pack magic that kept people from noticing us.

And still Wulfe burned.

Adam climbed onto the bank and bumped his shoulder lightly into Aiden’s side and the boy reached over (not down, because Adam is a werewolf and Aiden is not very tall) and put his hand on Adam’s back, closing his fingers on Adam’s fur. Other than that, the boy looked unmoved by the gruesome sight of Wulfe burning.

I came up on Aiden’s other side more slowly.

Wulfe rose to his knees and reached out as if to touch Aiden—but lacked the strength to close the distance between him and us. “Please,” he said. “Please. I don’t want to die …”

And he lied. I had become much better at telling truth from falsehood. It used to be that vampires were difficult. It used to be that I needed scent to smell the lie. But now, sometimes, I could hear it.

I took a step forward, ignoring Adam’s growl.

Wulfe dropped to the dirt, facedown. He stopped moving, but his body still burned, flesh blackened and smelling like burned fat.

Then he turned his head and looked up at me. In an entirely normal voice he said, “Too much, right?”

The flames around him died, leaving us all in the dark as Wulfe bounced up to his feet.

I had never seen something that Aiden could not burn. I’d seen him melt metal and crack stone with his fire. A vampire was not metal or stone. Vampires are vulnerable to fire.

There were not a lot of ways to kill a vampire. Fire was the best one I knew of. I had trouble pulling air into my lungs again, but this time it wasn’t magic that caused my difficulties—it was fear. I would not have thought that anything could make Wulfe more terrifying to me before this moment. I had been wrong.

The skin and burned muscle tissue reknit itself as Wulfe dusted off the remnants of his clothing, which seemed to have fared a lot better than they should have, given all the burning that had been going on. His pants were nearly intact, if blackened and smelly. He looked at Aiden and the smile died away from his face. Aiden stepped closer to Adam.

“Child,” he said. “I gave you your chance. I won’t give you another.”

He looked at me, hugged himself, and rocked back and forth to the rhythm of my heartbeat because creepy was what Wulfe did. In a fade-away voice he said, “Well, boys and girl, I think my stalking is done for tonight. This was much more exciting than I thought it would be. Ta.”

He waved a hand, then turned on his heel and walked back down the road. We all watched him go. I didn’t think it was an accident that, at the same bunch of trees that Adam had used to disappear, before the rabbit had bitten me, Wulfe blended into the shadows and was gone.

In high-alert mode, Adam pushed us all back down the road toward home. Nothing more tried to kill us before we made it into the kitchen.

I made a beeline for Adam’s office. Emerging a few minutes later, wearing my clothes and in human form, I found Aiden waiting for me at the table. Like mine, his hair was still wet.

“Adam went upstairs,” Aiden said. “I think he’s going to change and come back down. I told him that I needed to talk.”

“Are you okay?” I asked.

He laughed, sounding tired. “I am never okay, Mercy. But some days I am more okay than others. This is one of the ‘other’ days. Wulfe did something to me. Look.”

He held up his hand and nothing happened. I wasn’t sure what I was supposed to be looking at.

“Since Underhill made me, Mercy, I have never not been able to call up fire.” He wiggled his empty fingers and put them back down on the table. In a small voice he said, “I’m not even sure how I feel about that. I can’t protect myself. But at the same time, it might be good to be just … ordinary.”

“Don’t get used to it,” I warned him. “If Wulfe did something permanent, I’m pretty sure he would have bragged about it.”

“Is that what you wanted to talk about, Aiden?” asked Adam, entering the kitchen still buttoning his shirt. His skin was flushed from the change and he was barefoot.

Jeez, he was sexy.

Aiden shook his head. “I know what killed Mercy’s friends,” he said. “And it is bad.”

Adam pulled up a chair opposite Aiden, all business. “What can you tell us?”

“Did you see her wounds?” Aiden asked Adam. “Before Wulfe threw her in the river.”

Adam started to shake his head—then stopped. “I thought it was a trick of light. But it looked like there was steam rising from the bite on her neck.”

Aiden shook his head. “Not steam. Smoke.

“When I lived with my friends in Underhill”—before they all died, he meant—“there were places we knew not to go. Sometimes it was because one of us saw something—or one of us died. But mostly Tilly would warn us about them. This was before we knew what she was—though we sometimes wondered where she learned all the things she knew. One of the places Tilly warned us about was a cave where a beast lived. If it bit you, it could take your body over. Eventually it would tire of playing with you—and it would kill you. But when it bit you, the smoke that was its magic would fill you up and leak from your wounds. And once you were dead, it could take on your shape and go after your friends.” He shivered a little more, as if he couldn’t get warm. “She liked to tell those kinds of stories when we were huddled in the dark, already afraid. She called this creature the smoke beast.” He bit off the word, shook his head, and looked a little ill.

I recognized that look. When he’d escaped Underhill into the ungentle hands of the fae, they’d gifted him with a translation spell. Even the most finely crafted translation spells, I’d been told, are traumatic. They ruffle through memory and thought for the meaning of the word that needs translation. And the one they’d imposed upon Aiden had been of the quick-and-dirty variety.

“That’s not quite the right word,” he said. “Maybe ‘smoke demon’ is a better translation.” His mouth tightened again. “Though not a demon as you understand it. Evidently there is not an adequate word for it in English. I don’t know if it was one of a kind or if there are more of its kind loose in the world. I haven’t heard anyone saying anything about it.” He shook his head. “Anyway—supposedly it can become anyone or any living thing.”

“The fae can do that,” observed Adam.

Aiden nodded. “Yes. Which makes it interesting that its ability to shapeshift was one of the things Tilly warned us about. Maybe it wasn’t fae—but she didn’t say that. But the main thing she warned us about was that if he bites you, he takes over your body. I have the distinct impression, though I don’t remember why, if it takes you over, your death is inevitable.”