Jace, Alec and Isabelle go after an escaped Seelie prisoner from the Gard who goes down into a sewer system. Once there, Jace attacks the prisoner until Alec stops him and Isabelle arrests the prisoner. Jace angrily reminds them that Clary's death was on him after being chastised by his siblings for risking his life. Clary and Jonathan are revealed to have survived the explosion, with Lilith transporting the apartment to Siberia seconds before her banishment. Simon, still guilt-ridden for causing Clary's supposed death and afraid of hurting anyone, is desperate to get rid of the Mark of Cain and Maia tries to help him. Luke convinces Jace that Clary might be still alive. Iris, who was previously broken out of the Gard during Valentine's murderous rampage, tries to get Madzie back, but is foiled and recaptured by the Clave. Isabelle suspects that the Clave is torturing the imprisoned Downworlders. Clary attempts to kill Jonathan to prevent him from wreaking havoc on Earth, but then realizes that because of the mark Lilith carved into her skin, their lives are now bound together as one.