“Yeah, well, I exaggerate a lot. You must have realized that by now.” Theo may be full of it, but I give him this: at least he knows he’s full of it. “And besides, that was before I got to work on them. The Firebirds are better now than ever before.”

It wasn’t like I made a decision at any one moment. When Theo came to sit with me on the deck, I felt powerless against the tragedy that had ripped my family in two; by the time I spoke, I’d known exactly what I intended to do for what seemed like a long time. “If you’re that sure, then okay. I’m in.”

“Whoa. Hang on. I never said this was a trip for two.”

I pointed at the Firebird lockets. “Count ’em.”

His fist closed around the Firebirds, and he stared down at his hand like he wished he hadn’t brought them both and given me the idea—but too bad, and too late.

Quietly I said, “You’re not to blame. But you’re also not talking me out of it.”

Theo leaned closer to me, and the smirk was gone. “Marguerite, have you thought about the risks you’d be taking?”

“They’re no worse than the risks you’d take. My dad is dead. Mom deserves some justice. So Paul has to be stopped. I can help you stop him.”

“It’s dangerous. I’m not even talking about the dimension-jumping stuff right now. I mean—we don’t know what kind of worlds we’ll find ourselves in. All we know is that, wherever we end up, Paul Markov is there, and he’s a volatile son of a bitch.”

Paul, volatile. Two days earlier, I would have laughed at that. To me Paul had always seemed as quiet and stolid as the rock cliffs he climbed on weekends.

Now I knew that Paul was a murderer. If he’d do that to my father, he’d do it to Theo or me. None of that mattered anymore.

I said, “I have to do this, Theo. It’s important.”

“It is important. That’s why I’m doing it. Doesn’t mean you have to.”

“Think about it. You can’t jump into any dimensions where you don’t exist. There are probably some dimensions I exist in that you don’t.”

“And vice versa,” he retorted.

“Still.” I took Theo’s free hand then, like I could make him understand how serious I was just by squeezing tightly. “I can follow him to places where you can’t. I extend your reach. I make the chances of finding him a lot better. Don’t argue with me, because you know it’s true.”

Theo breathed out, squeezed my hand back, let it go, and ran his fingers through his spiky hair. He was restless and jumpy as always—but I could tell he was considering it.

When his dark eyes next met mine, he sighed. “If your mother had any idea we were talking about this, she’d skin me alive. I’m not being metaphorical about that. I think she could actually, literally skin me. She gets the wild eyes sometimes. There’s Cossack blood in her; I’d bet anything.”

I hesitated for a moment, thinking of what this meant for my mother. If something went wrong on this trip—if I turned into atomic soup—she would have lost both me and Dad within the space of two days. There weren’t even words for what that would do to her.

But if Paul got away with it, that would kill her just as surely—and me, too. I wasn’t going to let that happen. “You’re already talking about Mom’s revenge. That means we’re doing this together, doesn’t it?”

“Only if you’re absolutely sure. Please think about this for a second first.”

“I’ve thought about it,” I said, which wasn’t exactly true, but it didn’t matter. I meant it then as much as I mean it now. “I’m in.”

That’s how I got here.

But where is here, exactly? As I walk along the street, crowded despite the late hour, I try to study my surroundings. Wherever I am, it’s not California.

Picasso could have painted this city with its harsh angles, its rigidity, and the way dark lines of steel seem to slash through buildings like knife strokes. I imagine myself as one of the women he painted—face divided in two, asymmetrical and contradictory, one half appearing to smile while the other is silently screaming.

I stop in my tracks. By now I’ve found my way to the river-side, and across the dark water, illuminated by spotlights, is a building I recognize: St. Paul’s Cathedral.

London. I’m in London.

Okay. All right. That makes sense. Dad is . . . he was English. He didn’t move to the United States until he and Mom started working together. In this dimension, I guess she came to his university instead, and we all live here in London.

The thought of my father alive again, somewhere nearby, bubbles up inside me until I can hardly think of anything else. I want to run to him right now, right this second, and hug him tight and apologize for every time I ever talked back to him or made fun of his dorky bow ties.

But this version of my dad won’t be my dad. He’ll be another version. This Marguerite’s father.

I don’t care. This is as close as I’m ever going to get to Dad again, and I’m not wasting it.

Okay. Next step: discover where this version of home is.

The three trips I’ve taken to London to visit Aunt Susannah were all fairly quick; Aunt Susannah’s all about shopping and gossip, and as much as Dad loved his sister, he could take about six days with her, maximum, before he lost it. But I was there long enough to know that London shouldn’t look anything like this.