What to read after Look Past?

Someone brutally murdered Mary Mathison, daughter of a prominent and very conservative local pastor, and Avery, a transgender boy who loved Mary, is bent on finding her killer. He goes to the crime scene to do some investigating, but is quickly put in harm's way. Reluctantly, Avery must move to the sidelines to wait for the police to do their job.
However, following Mary's funeral, Avery receives the first in a series of disturbing text messages that can only come from the killer, revealing that Avery is now a target. The killer claims that Mary's murder was revenge for her relationship with Avery. The killer's demands are simple and horrific: Avery must repent for changing his gender identity, or he will be the next one killed.
Now Avery is torn between finding the murderer and protecting himself from a killer who is playing a disturbing cat-and-mouse game. Can Avery deny who he is to catch Mary's killer? Or will sacrificing himself be the ultimate betrayal?