“I set up a base camp here for a while, with food and water and books.” He was so excited, like a rich, unpopular kid the first time he brings home friends to see his fancy toys. He didn’t even notice that Quentin and Alice weren’t saying anything. “I always thought it would be Melanie who came here the first time, but she could never quite work the spells. I tried to teach her, but she’s not quite strong enough. Almost, though. In a way I’m happy it’s you guys. You know you were the only friends I ever had at Brakebills?”

Penny shook his head as if there was something amazing about the fact that more people didn’t like him. Only twelve hours ago, Quentin thought, he and Alice would have barely been able to keep from cracking up with conspiratorial laughter at the suggestion that they had ever been friends with Penny.

“Oh, I almost forgot: no light spells here. They go crazy. When I first came here, I tried to do a basic illumination. I couldn’t see for two hours afterward. It’s like the air here is hyperoxygenated, only with magic. One spark and everything goes up.”

There were two stone steps leading up to the fountain. Quentin sat down on the top one and leaned his back against the rim. The water looked unnaturally black, like ink. There was no point in fighting anymore. He would just sit here and listen to Penny talk.

“You wouldn’t believe how far I’ve walked in this place. Hundreds of miles! Way farther than the Chatwins ever went. Once I saw a fountain that had overflowed like a plugged-up toilet and flooded its square a foot deep, and half the squares around it. Twice I’ve seen ones that were capped. Sealed over with a bronze cover like a well, like they were keeping people out. Or in. Once I found fragments of white marble on the pavement. I think it was a broken sculpture. I tried to piece it back together, to see what it was a statue of, but I never could.

“You can’t get into the buildings. I’ve tried every way you can think of. Lock picks. Sledgehammers. Once I brought an acetylene cutting torch. And the windows are too dark to see in, but once I brought a flashlight—you know, one of those high-intensity rescue flashlights, that the Coast Guard uses? When I turned it all the way up I could see inside, just a little bit.

“I’ll tell you something: they’re full of books. Whatever they look like on the outside, on the inside every one of these buildings is really a library.”