No one's done it because Isabelle's willing to bet that every person stuck here is a mundane. Shadowhunters, werewolves, vampires, warlocks, the fey — they'd be able to get out easy. And so will she, as soon as she finds her siblings. The sooner that happens, the better. They can find a way back home, and figure out just what's going on around here. And then, she supposes they can come back and get everybody else out, too.

"What, and let you try and cut my head off again?" Isabelle arches a brow, reaching down beside her to pick up the backpack that had surfaced the fountain with her. "I don't think so, sweetheart."