Quentin and Julia undertake a difficult journey; Eliot faces mounting catastrophes in Fillory; Margo attempts to fix the bad deal she made; Penny finds a new ally.

Quentin nears what could be a dead end to his problem; Eliot risks his life for his kingdom, and Margo makes a costly bargain to protect him; Julia, Kady and…

A Librarian from the past teams up with the Librarians of the present to take down an ancient and powerful enemy let loose in the modern day. When superfan Flynn…