There was no orange residue on my gloves.

“Hey, Zee?” I asked, holding up the filter.

“Was,” he said, perched on the edge of an engine compartment with a limberness that belied his elderly appearance. “I am busy,” he added.

“I have a bright orange air filter,” I singsonged. “Don’t you want to give it a look?”

There was the buzz of hard rubber on cement and Tad slid out from under Zee’s car, a flashlight in his hand. “Orange?” he said.

“Bah,” said Zee. “You’ve distracted the boy, Mercy.”

“What is orange and keeps air from flowing—and why would someone dump that all over an air filter?” I asked.

Tad took the air filter and stared at it. He looked at the Rabbit.

“What was supposed to be wrong with the car?” he asked.

I looked at the repair sheet I’d filled out while I’d been in exile on the front desk. “Sputters and dies,” I said.

“I guess I know why,” Tad said. And then he dropped the filter like it was a hot potato and jumped back.

“Dad?” he said in a semipanicked voice, holding up his hands. The skin on his fingers, where he’d touched the air filter, was blistering and cracking. As I watched, the tips of his fingers blackened.

Zee grabbed Tad’s hands, muttered something foul, and hauled Tad to the sink. I got there just before them and turned the water on full force. Zee held Tad’s hands under the flow of water and then SPOKE.

    Wasser, Freund mir sei,

 komm und steh mir bei.

 Fließe, wasche, binde, fasse,

 Löse Fluch, trag ihn hinfort,

 Lass ab von Hand und diesem Ort.

The power in his voice made my ears ring. And that made me realize that whatever was on the air filter wasn’t caustic—which was what I’d thought when I’d seen Tad’s skin—but magic. And as Zee’s power touched it, something that cloaked that magic washed away and the whole shop smelled of witchcraft.

I thought of Elizaveta’s explanation of what the witches had done to disguise the trap in my basement, and figured that they had done something like that here.

“How is he?” I asked.

“He is angry at himself for being so careless. His hands smart a bit, but they will heal up just fine now that his dad has made the bad magic go poof. And he is able to evaluate himself, thank you very much,” said Tad crossly.

“He is fine,” said Zee. “Grumpy as usual.”

“That’s a little ‘pot calling kettle’ of you, don’t you think?” asked Tad.

Zee grunted, frowned, and tipped his head to the side. He sniffed loudly.

“I smell it, too,” I said. “It’s not just the air filter. If it were the air filter emitting that much magic, Tad wouldn’t have any hands left.”

“Hey,” said Tad. “Thanks for that thought.”

“Serves you right for being so careless,” said Zee. “Mercy, this new shop of yours, it is equipped with fire suppression, no? Do you know if it is foam or water?”

“Water,” I said. “Water was easier.”

“Ja,” he said. “And useless in a grease fire.”

“We dealt with building codes, not practical matters,” I said. “Building codes said sprinkler system. But the fire extinguishers will take on grease fires.” We had lots of extinguishers.

“The sprinklers are good news for us,” he said. “But maybe not for a fire. Mercy, help me get the vehicles opened up.”

So we opened hoods and air filter covers and any other kind of covers that Zee thought useful. Tad unplugged and collected various electronics and covered them with plastic—something he could do with minimal use of his poor hands.

Zee inspected the computers, cell phones, and computational equipment and gave a reluctant nod. “Those have not been affected yet. We can let them stay out of the water.”

Then Zee stalked over to the test lever for the water suppression system and pulled it down. As he did, he SPOKE again.

    Wasser, Freund mir sei,

 komm und steh mir bei.

 Fließe, löse, binde, fasse,

 Hexenwerk verfange dich,

 Schwinde Fluch, zersetz den Spruch,

 nimm’s hinweg, erhöre mich.

This time, since Tad wasn’t writhing in pain, I paid more attention to what Zee said. My German wasn’t good enough for a full poetic translation (and it sounded like poetry) but I got the rough gist of it. He called upon water—the element, I thought—and entreated it to wash away the witchcraft.

Nothing different happened after he spoke, until he pulled out his pocketknife and nicked the back of his hand, letting his blood wash into the water.

Black smoke filled the air, and the water hissed and steamed as it came down. Some of the foulness was from the water that had been sitting for months in the tanks that supplied the system, but most of it was magic-born.

“This is a cursing,” Zee told me, grabbing a clean rag to stanch his hand. “The last time I saw something like this was . . .” He shook his head. “I don’t remember how long ago. But it doesn’t matter. If we do not take care of it now, right now—it will spread from the shop, from us, from everything here, like a virus. Gaining power from the misery it causes.”

I put up the Closed sign and locked the door.

When the water had finished its job in the shop, Zee ran us—clothes and all—into the shower for the same treatment.

Finally, wet and shivering with nerves, I dug my phone out and called Elizaveta, just as if nothing had changed in our relationship.

I don’t know that I trusted her—and I was really, really glad that Zee had been here so I didn’t need to trust her with everything. But calling her for help beat calling in Wulfe, the witchblood (or something magic using, anyway) vampire.

Elizaveta, black magic and all, was preferable to Wulfe. Besides, it was daytime, so I had no choice.

Then I called Adam.

“I heard you gave up your position as organizer,” he said.

“Was that what I was?” I asked. “I thought I was message girl. Yes. Abbot wanted me to get the fae to supply a list of the attending fae, by name, and what their powers were.”

“Ah,” he said. “And you told Abbot it wouldn’t fly.”