Quick recap
Lena blames herself for Macon's death and pulls away from Ethan. Ethan meets Liv, a Keeper in training from England. Lena runs off with Ridley and the mysterious John Breed toward the Great Barrier. Ethan, Link and Liv follow through the Caster tunnels. Along the way, Ethan learns Macon never died: he was trapped in an Arclight. At the Great Barrier, Sarafine wants to use the moon of Lena's Claiming. Lena claims herself, Light and Dark at once. Abraham Ravenwood takes the Dark Casters away. Link, bitten by John, starts to change, and Ridley is left without powers. A man in a white suit takes the Arclight.
No spoilersOpens once you mark the title as seen.