Katherine Howell Books in Order

Paramedic Sophie Phillips's husband is shot and their infant son is abducted. As Detective Ella Marconi investigates, Sophie launches her own desperate search, confronting suspicions of police corruption and a threat that may be deeply personal.

Paramedic Lauren Yates discovers a dead man and recognizes the nearby killer as her sister's dangerous ex-partner. His threats demand silence, but another victim's dying accusation pulls Lauren into Detective Ella Marconi's investigation.

Detective Ella Marconi reopens the unsolved murder of schoolboy Tim Pieters nearly two decades later. An anonymous tip suggests the girl who found his body, now a paramedic, knows more than she originally revealed.

Suzanne Crawford is found stabbed and her husband disappears, suggesting domestic homicide. Detective Ella Marconi's investigation uncovers gaps in his past, another missing person, and a trainee paramedic whose account may conceal a crucial connection.

Paramedic Holly Garland encounters her estranged brother at the scene of a shooting, threatening to expose her hidden past. Detective Ella Marconi investigates contradictory accounts as further deaths suggest the killer is reacting to their inquiries.

Paramedics help Marko Meixner after a suspicious car crash, then discover he has died beneath a train. Detectives Ella Marconi and Murray Shakespeare investigate whether his earlier involvement in a murder case explains the strange events.

Two female paramedics are murdered within a month, leaving Detective Ella Marconi searching for a connection. A victim's friend conducts her own inquiries, suspecting a colleague knows more and placing herself in further danger.

Paramedic Stacey Durham disappears, leaving an abandoned car covered in blood. Detective Ella Marconi questions her husband, sister, and colleagues as an ominous message demands the truth, threatening to turn the missing-person inquiry into a murder case.