Quick recap
Dalinar asks Rysn, a merchant who lost the use of her legs, to sail her ship to Aimia, a legend-shrouded island no ship comes back from. Lopen of Bridge Four goes along with other Radiants. The crew faces mysterious attacks and learns the island is guarded by the Sleepless, beings made of swarms. Deep in a cavern, Rysn touches a Dawnshard, an ancient power, and becomes bonded to it. The Sleepless let the ship leave in exchange for a cover story that hides the secret, and stay on as her guardians. On the way home, Lopen swears his Third Ideal.

