Perish Twice by Robert B. Parker

Boston private investigator Sunny Randall is back—and this time, the case hits close to home. When her sister Elizabeth asks her to check out her best friend, a feminist activist being harassed by a stalker, Sunny expects a simple protection job. But when the woman turns up dead, Sunny finds herself drawn into a complex web of betrayal, deceit, and corruption.

As the trail leads through Boston’s political elite and into her own family’s secrets, Sunny must navigate dangerous territory—both personal and professional—to uncover the truth before more lives are lost.

Tough, sharp, and filled with Parker’s signature wit, Perish Twice is a gripping mystery that explores the price of loyalty and the shadows that haunt even the strongest hearts.