Quick recap
Ethan is in the Otherworld, sending Lena messages through the crossword in Gatlin's newspaper. To return, he must tear his own page out of the Caster Chronicles, kept beyond the Great River. With help from the crow Exu, he reaches the Gatekeeper, Xavier, who demands the Book of Moons. At the Far Keep, Ethan learns Angelus rewrote fates to destroy the Mortals. He tears out Angelus's page, killing him, and then his own. Ethan wakes at the foot of the water tower and sees Amma rising to join her ancestors: she traded her life for his. Ethan and Lena are reunited.
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