Lady Midnight - The Dark Artifices by Cassandra Clare

A few years have gone by since the Dark War where several Shadowhunters were killed. In this new series by Cassandra Clare, we follow the Shadowhunter Emma Carstairs and her parabatai Julian Blackthorn who live in the Los Angeles institute alongside Julian's younger siblings; Livia, Ty, Dru and Tavy. In the Dark War, Emma lost her parents. The Clave said they were killed by Sebastian Morgenstern, but Emma does not believe them. She knows that her parents' death means something and she seeks vengeance. After the war, the Cold Peace was enacted by the Clave. The Fair Folk are no longer protected by the Clave under the Accords. This also means that Shadowhunters aren't allowed to communicate with the fairies or help them. Therefore, Julian's older sister and brother, who are half fairy, were taken away. Helen on Wrangel Island and Mark in the Wild Hunt. A family separated. Then Mark shows up again after 5 years with some other fairies regarding the murders that have bee...