25 Alive: Women's Murder Club, Book 25 by James Patterson (Ex-Library HC/DJ) 2025!

SFPD homicide detective Lindsay Boxer knows her way around a crime scene.  
 
But nothing can prepare her for the shock of recognition: the victim is Warren Jacobi, Lindsay’s onetime partner who rose to chief of police.   
 
A top investigator until the end, Jacobi managed to leave Lindsay a clue.   
 
Following a trail of evidence along the west coast, the Women’s Murder Club pledges to avenge Jacobi’s death before the killer can take another one of their own.