“Okay. Okay.” Something nagged at him about this, and he was going to put it into words. He had to force his weary brain to grind out thoughts. “Penny, we have to slow down. Look at the big picture. The Chatwins got to go to Fillory because they were chosen. By Ember and Umber, the magic sheep. Rams. They were there to do good, to fight the Watcherwoman, or whatever.”

Alice was nodding.

“They only got to go when something was going on,” she said. “The Watcherwoman, or the wandering dune, or that ticking watch thing in The Flying Forest. Or to find Martin. That was what Helen Chatwin was saying. We can’t just go barging in without an invitation. That’s why she hid the buttons in the first place—they were a mistake. Fillory wasn’t like the real world, it was a perfect universe where everything was organized for good. Ember and Umber are supposed to control the borders.

“But with the buttons anybody could get in. Random people who weren’t part of the story. Bad people. The buttons weren’t part of the logic of Fillory. They were a hole in the border, a loophole.”

The mere fact that Alice knew her Fillory lore cold, no hesitation, added another high-powered exponent to Quentin’s guilty, bankrupt longing for her. How could he have gotten so confused that he thought he wanted Janet instead of her?

Penny was nodding and rocking his whole body forward and backward semi-autistically.

“But you’re forgetting something, Alice. We’re not bad people.” The zeal light came on behind Penny’s eyes. “We’re the good guys. Has it occurred to you that maybe that’s why we found the button in the first place? Maybe this is it, we’re getting the call. Maybe Fillory needs us.”

He waited expectantly for a reaction.

“It’s thin, Penny,” Quentin said finally, weakly. “This is all really thin.”

“So what?” Penny stood up. “So. What. So what if Fillory doesn’t work out? Which it will? So we end up somewhere else. It’s another world, Quentin. It’s a million other worlds. The Neitherlands are the place where all worlds meet! Who knows what other imaginary universes might turn out to be real? All of human literature could just be a user’s guide to the multiverse! Once I marked off a hundred squares straight in one direction and never saw the edge of this place. We could explore for the rest of our lives and never begin to map it all. This is it, Quentin! It’s the new frontier, the challenge of our generation and the next fifty generations after that!

“It all starts here, Quentin. With us. You just have to want it.

“What do you say?”