faced with sizable blocks of gray stone. He shook the bars of the locked gate. Not surprisingly, they didnât budge.
Inside, the arch was high and wide, with deep dirt verges on either side of the surfaced walkway through the middle. I could make out big barrels lined up in rows on either hand. Beyond, there was another stretch of path, gloomy green foliage, and then the stone face of another arch farther on.
âWhatâs in there?â I asked. I realized that Iâd been hoping to meet somebody besides Kevin in what was beginning to seem like an awfully empty landscape.
He stepped back, staring upward and rubbing his palms on his sweats. âThe Prison City,â he said.
I looked up too, expecting to see rolls of razor wire and guards with Uzis. âYou made all this,â I said, âand you put in a Prison City?â
âEvery country has prisons,â Kevin said in a hard, superior tone. âOn your side itâs the Central Park Zoo in there behind the double arches of the Denesmouth. Here, itâs prison.â
It fit, in a gloomy way: a home for caged animals was turned, in his fantasy, into a town of caged people, which was what I assumed Kevin meant by âPrison City.â It was not what youâd call an ambiguous phrase.
âSo we were going to do what?â I asked. âDrop in here at this prison, which was somehow supposed to get me home?â
âSomething like that,â he said. âBut we canât get in, and thereâs guys around here whoâd lock me up if they could and keep me for the White One. Letâs go.â
The image of something fat and pale like a large slug popped into my head. Somehow I did not want to pursue the subject of the White One.
âLock you up?â I said. âIn your own country?â
âI made this place for adventure,â he said, sort of throwing out his chest and looking around possessively. âThe whole thing, the people, the plot of the story, everything. âPlotâ means things happen, so thereâs enemies around, you know? Danger. Scared?â
âNervous,â I said. âBecause you donât seem to know your way around your own private country.â
âI know every inch of this place,â he said loftily. âEvery ritual, everything! So relax, Amy. Thereâs another way back nearby, if itâs where it belongs. And if not, itâll just take a little longer to find an arch you can use, thatâs all. Sooner or later the Battle Path will take us where we need to go.â
I stood where I was, clutching the roller skates for security. âWhat do you mean, âif itâs where it belongs?â â
âOh, things sort of move around,â Kevin said. âNot the arches, they stay put, but other stuff kind of migrates. Thereâs magic currents in the earth that shunt things around, like.â
Oh boy, I thought. âYou invented a magical land where you can never know where anything is for sure?â
He gave me a charming grin. âMagic is full of surprises. Thatâs half the fun.â
He led the way down a steep path through a tunnel of huge old trees. Far below I thought I saw  . . . was it possible? Was that why the air had such a tang to it? Where Fifth Avenue was supposed to be, marking the eastern boundary of Central Parkâwas that blue band on the horizon the sea?
I could not make my dazed mind come up with a sensible-sounding way to ask about this. The best I could do was, âSo where are we going now, Kevin?â Which sounded whiney and stupid, and as soon as the words were out of my mouth I wished I hadnât said them. Luckily, he didnât seem to have heard me.
Suddenly the trees thinned out around an outcrop of black granite. From there Kevin pointed down at a shingled rooftop in a clearing below.
âSee?â he said triumphantly. âI knew it was here someplace.â
I saw