A Deadly Promise (Emily Slate FBI Mystery Thriller)

By: Alex Sigmore

In Sable Cove, generosity comes with a deadly price.

Until the bodies of Gareth and Petra Voss are found on the shores of Lake Michigan, the picturesque town looks like a postcard of perfection. But FBI Special Agent Emily Slate knows better. The prettier the surface, the darker the secrets drowning beneath it.

Thrust into a double murder investigation, Emily and her partner Zara quickly realize they aren't just looking for one suspect-they are staring down an entire town with a motive. Navigating a web of long-buried resentments and silent alliances, Emily finds that anyone in Sable Cove could have pulled the trigger.

But the twisting case isn't the only thing threatening to derail them. Zara is battling the lingering ghosts of a recent trauma, and the suffocating pressure of the investigation is pushing her to the breaking point.

As the walls close in, Emily is forced to confront a chilling reality. How do you catch a killer when everyone has a reason to want the victims dead? And what happens when the people you trust are hiding the deadliest secrets of all?

In the nineteenth gripping installment of the Emily Slate series, Amazon bestselling author Alex Sigmore delivers a pulse-pounding thriller about the promises we make, the secrets we keep, and the devastating cost of the truth.

• Format: Paperback
• Language: English
• ISBN: 1971270407
• ISBN13: 9781971270401
• Release Date: October 2026
• Publisher: Dark Woods Press
• Length: 294 Pages
• Weight: 0.75 lbs.
• Dimensions: 8.5" x 0.7" x 5.5"