The Coldest Case is a story by James Patterson that features Detective Billy Harney.
This story is only available as an audiobook and was released on March 11, 2021. It was followed up in 2024 with The Coldest Case: The Past Has A Long Memory.
The Coldest Case book description
In The Coldest Case: A Black Book Audio Drama, homicide detective Billy Harney sends his new partner, Kate, deep undercover in a notorious Chicago drug ring. When several members of the ring soon turn up dead, Billy abruptly pulls Kate out, blowing her cover. Kate’s informant inside the gang quickly disappears. As does the ring’s black book….
When Billy can’t find the informant, he wonders if Kate is secretly harboring her, since the two grew close during Kate’s weeks undercover. As Billy and Kate investigate the ring’s murders, they’ll be pulled into a dangerous web of corrupt politicians, vengeful billionaires, drugged pro-athletes, and violent, dark web conspiracies, all in search of the missing black book.
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