The Brakebills crew gears up for the final leg of their quest, but as everything falls into place, a season’s worth of a narrative Jenga collapses. Julia is pulled away by a fellow god – Iris – who claims it is now Julia's time to move on. Leaving the team behind, Julia learns the fundamentals of what it means to be a "creator," though she isn’t quite into the expectations of being a higher power. She’s also distracted by her friends' calls for help, after Alice destroys the seven magical keys upon the group’s arrival to the Castle at the end of the World. After Quentin bargains his own freedom in exchange for getting inside the castle and releasing magic unto the world, Eliot turns the god-killing bullet on “the creature even the gods fear.” Thinking it’s dead, they return to use the seven keys to jump start magic, but Alice has other plans. Snorting fairy dust, she uses her powers to destroy the keys.

Julia arrives to save the day, binding Alice and using her own godly powers to create seven more. But just as magic begins flowing again, The Library’s henchmen, including Irene and Fogg, appear and use the sifine – powered by the magic of a now dead Fairy Queen’s dust – to capture it all. After handing all control of magic over to The Library, the Brakebills crew has their memories wiped and are placed back into the world of regular humans, where they are sitting ducks for the castle creature which seemingly escaped and is looking to “play.”