H.K. Christie

A PI in a vicious tailspin. An innocent in danger. A case that could claim them both.Private Investigator Martina Monroe has no room for grief. Nearly a year after she failed to prevent her husband’s death, a battered woman depends on her for safety....

A string of puzzling murders. A skilled and dangerous killer. Will the Cold Case Squad discover the truth in time to save one of its own?PI Martina and Detective Hirsch accept the new sheriff’s request to reopen a ten-year-old serial killer case. Not...

Missing twin sisters. A chilling revelation. Will this be the case that breaks the Cold Case Squad?Twenty years earlier, a set of female eighteen-year-old twins went missing in the Bay Area. There were no news reports or national coverage. The...

Three months. Three missing women. One PI determined to discover the truth.Back from break, PI Martina Monroe clears the air with her boss at Drakos Security & Investigations and is ready to jump right into solving cold cases for the CoCo County...

A ritualistic murder. Multiple suspects. Can the cold case detectives find the truth before the killers strike again?Ten years earlier, two teenage girls were found murdered by what appeared to be a satanic sacrifice. The case had dominated the news...

Five years ago, she tried to kill the man who abducted her sister. Now she’s living next door to a psychopath hiding in plain sight.Allison Smythe is barely clinging to sanity. After blaming and nearly killing an innocent man for her sister’s unsolved...

A missing woman. A chilling connection to a baby trafficking ring. Will the Cold Case Investigators stop the killers before another woman is taken?Martina and Detective Hirsch, still reeling from their last high-profile case, agree to reopen the...

She’s on her last chance. When the bodies start piling up, she’ll need to save more than her job.Martina Monroe is a single bad day away from losing it all. Stuck catching insurance fraudsters and cheating spouses due to a DUI, the despondent PI...

A missing mother and child. A secret past revealed. Will Martina and Hirsch discover the truth before they meet their end?In the thick of the current cold case investigation, PI Martina Monroe receives a hand-written letter from a desperate mother...