Back in Fillory, the gang heads to Elliot’s wife’s house. (Remember that? Elliot married a Fillorian girl?) After consulting the Fillory and Further books, Quentin, Alice, and Elliot head to Castle Whitespire to find The Armory in hopes of finding knowledge to kill The Beast. Margo and Penny head to a magic river to reattach Penny’s hands, which were severed by The Beast. Ew.