Quick recap
Three months later, the now-immortal Feyre suffers nightmares and guilt. On her wedding day with Tamlin, Rhysand calls in the bargain and takes her to the Night Court. Back home, Tamlin smothers her and even locks her in the house, and she escapes to Rhys's side. Feyre discovers Velaris, a hidden city, and Rhys's circle: Cassian, Azriel, Mor and Amren. The King of Hybern wants to use the Cauldron to bring down the wall between humans and faeries. Feyre learns Rhys is her mate. In Hybern, the king throws Nesta and Elain into the Cauldron, and they become Fae. Tamlin turns out to be the king's ally. Feyre pretends she was bewitched and goes back with him as a spy. Left open: the coming war.

