Jake even did the dishes after dinner—I offered, but he insisted. I told Jake and my mom that I was tired, although mostly I just wanted to give them some privacy—and be alone to think. No sooner had I shut my door than the air in front of me began to shimmer, and Mombi materialized. “Again?” I hissed. “I can’t exactly explain away a random old lady standing in my room if my mom comes in!”

“‘Old lady’ isn’t very polite, missy,” Mombi growled. “That’s ‘old witch’ to you. Anyway, I’m not really here. Gert, Glamora, and I are still hiding out in the Darklands. I’m just projecting to check in. You and I need to talk.”

“I thought your magic was too weak to just zip around like you’re on vacation,” I said. “Or are all bets off when it comes to spying on me?”

“I only spy because I care,” Mombi hissed. “Unlike some people who seem to have forgotten what they’re here for.”

“I haven’t forgotten a thing,” I snapped. “Now what’s going on?”

“We seem to be adjusting to being outside of Oz. Still a long way from shipshape, but at least we’re getting strong enough for a little astral projection.”

“I’m not sure that’s going to help,” I said dully. I sank down onto my bed and told her everything. About the newspaper article, breaking into the library closet, finding the mysterious box. When I got to the creature who’d dropped in on my and Dustin’s party, Mombi stopped me.

“Tell me this part again,” she said, her voice low and urgent. “What did you see?”

“Something tall and skinny. Black clothes. Bald. I think it had a crown.”

“And what did it say to you?”

I struggled to remember, but it was like trying to look through fog. “I can’t remember exactly. Something about how I’d found what it had hidden. I think it has to be the person who covered up the truth about Dorothy—that she was real, I mean.” I shuddered. “Dustin couldn’t see it.”

“He wouldn’t be able to,” Mombi said grimly. She stared off into space for a moment, rubbing her chin with one thumb. “It can’t be him,” she muttered. “Ozma thwarted him. Has he really been here all this time?”

“Who?” I asked. Mombi kept talking to herself. “Mombi, who?”

She sighed and shook her head. “The Nome King,” she said. “I think what you saw was the Nome King. But if it was . . . we are in a mess of trouble indeed.”

“What’s a Nome King? It sounds like a kind of mushroom.”

Mombi snorted. “Who, not what,” she said. “Who. The Nome King is a king of the Nomes,” she said. “That’s nome with an n not a g, mind you. Don’t screw it up. He gets very prissy about the spelling. He pulled one of his diggers limb from limb while he was still alive just because he pronounced it with a g.”

I swallowed. That fit pretty well with the creepy dude who’d magically dropped in on me in the library. My interest in meeting up with him again was at—well, let’s say an all-time low. “Diggers? He digs stuff? What is he, like some kind of a troll? Don’t they live in mountains?”

Mombi gave an exasperated sigh. “All that time Glamora spent teaching you the difference between a scone and a crumpet, and no one ever bothered to teach you about the Nome King. Typical.”

“Well, don’t blame me,” I said.

Mombi spoke through gritted teeth like it hurt her to have to explain something so elementary. “A troll is a big, stupid monster. You bop it hard enough over the head—no more troll. A troll is easy-peasy. A Nome is more like a cross between a fairy and a demon. Nasty things. They live in the underworld of Ev, across the Deadly Desert.”

“Never heard of it,” I said.

“Frankly, it’s not much to write home about,” Mombi said. “The point is, the Nome King tried to invade Oz, ages ago, but Ozma stopped him. Made him swear an oath to leave Oz in peace as long as she ruled . . .” Mombi trailed off and looked at me as she let it sink in.

“Ozma isn’t in power anymore,” I said. “Congratulations, teacher’s pet.” I ignored her witchy sneer. “But if he’s trying to invade Oz, what’s he doing here?”

“I don’t know yet. But at least part of it makes sense. If he’s the one who erased any proof that Dorothy was a real person, he must know about the shoes. It’s possible he’s using them to travel back and forth—or he has some other power of his own. Magic in Ev isn’t like magic in Oz. It doesn’t follow the same rules. Ev is as different from Oz as the Other Place is. What exactly he’s up to is impossible to guess, but there’s no way it’s good news for us.” <