At a boarding school in New Hampshire, the former headmaster’s house sits empty, abandoned decades ago after his son disappeared inside and now thought haunted. But when four students break in on a dare, they don’t find ghosts or ghouls, but instead a doorway to another world: Elsewhere. Elsewhere is a realm of pure imagination, overflowing with everything Sylvan, Ariel, Jenna, and Vi could ever want: magic, adventure, acceptance, purpose, a half-human, half-buffalo librarian. But the longer they stay in Elsewhere, the more it seems there’s something not quite right with the fantasy utopia—and the less willing Elsewhere is to let them go back to their real lives. To escape this dream world, the four friends must journey through their darkest nightmares.