Sergeant Jay can't wait to wear her modular combat uniform. Can she prove to the Assaulters Corps that she is still worthy? Sergeant Jessica "Jay" Tilvari makes her first appearance in " Anomaly ", the opening novel of the " Star Cluster Zero " saga. This prequel is an adrenaline-filled dive into Jessica's past discovering the behind the scenes of a pivotal event. Prequel of "Anomaly".