It’s hard enough on the agents when the butterflies start falling apart, but suicides of girls who can’t seem to fit back in outside of the Garden are only half of the heartache that Eddison has to face down now. While the girls await their day in court with the Gardener, another killer is at large: the Spring Killer, who kills one teen every spring, and has done so for 17 years without exposing himself. His only marker is the flowers that he leaves around each girl’s lifeless body.