Evolution — L.S. Sygnet

Castillo's body count drops drastically while his surrogates do his bidding. Meanwhile, Raver and Briarwood uncover a crucial clue that leads them one step closer to finding Castillo's real identity, which accidentally exposes a witness who seems determined to protect Castillo at all costs. The reason for her defense of a serial killer adds another chilling layer to the game of cat and mouse.