They are on a cold trail

And running out of time.

Rhea Reilly is certain her twin sister’s sudden disappearance six months ago wasn’t a suicide, no matter what Colorado authorities think. She can’t afford to trust police detective Jackson Whitaker—even if he’s risking his career to uncover the truth. But a lethal trail of lies is drawing them together…and into an inescapable trap.

From Harlequin Intrigue: Seek thrills. Solve crimes. Justice served.

For more action-packed stories, check out the other books in the Unsolved Mystery Book series:

Book 1: Cold Case Colorado by Cassie Miles

Book 2: Cold Case Reopened by Caridad Pi–eiro