Your Mystery and Thriller Book Bargains for May 24, 2026

Shadow Sentinel: A Genetic Engineering Technothriller
Written by Rex Flint, the former Pentagon cyber operator who turns classified nightmares into edge-of-your-seat thrillers.

Monsters aren’t born. They’re engineered.

When a flash flood seals off Tall Pines, Georgia, ex–Air Force investigator Archer Lucas is dropped into a nightmare. Locals whisper about the Wampus Cat. The truth is uglier: A secret research lab has turned the Appalachian woods into a live test range for gene-spliced predators.

Cut off by rising water and dirty politics, Archer’s only reliable ally is A.L.I.C.E., an off-grid AI with her own secrets. By dawn, the bodies will stack up unless Archer can expose the operation, outmaneuver a federal smokescreen, and survive the hunt.

Shadow Sentinel blends Michael Crichton’s scientific dread with Stephen King’s knife-edge tension.

“A nail biting cat-and-mouse thriller.” – Katie Tallo, international bestselling author

Julie Walker thought she knew her life: three teenagers, a husband, and her job at the Ottawa library. But when a stranger confronts her with a shocking claim about her late father, everything she believed about her family is thrown into question.

At first she struggles to know what to believe. But once the truth is revealed, a series of unsettling incidents escalate into real danger: her family has become the target of someone with resources she cannot match and few limits to what they might do. Drawn into a web of menace and betrayal, and uncertain who to trust, Julie must find the strength to confront an enemy she doesn’t fully understand.

Other Retailers
Kobo

Category: Thrillers – Psychological

The crash was only the beginning. When a cartel plane goes down in North Idaho, forest ranger Roy Farmer finds a severed limb in the wreckage—and a growing trail of brutal deaths through the wilderness and nearby town. Corruption festers, a cartel war erupts, and something in the forest is hunting them all.

Category: Thrillers – Crime

When twelve-year-old Sienna Voss vanishes, three women close in on the truth: her mother, who trusted this quiet town — until now; the chief of police, haunted by a secret she thought she’d buried; and a cam-girl who knows too much. Only one of them will survive finding out what really happened to Sienna.

Category: Thrillers – Psychological

When her cousin’s girlfriend is slaughtered and dumped in the river, a pulse of terror beats through Tessa’s town, growing stronger with each mutilated body until not even Tessa herself is safe. In fact, if her childhood sweetheart is right, Tessa is the reason the murders are happening. If the evidence is right, death is a mercy for Tessa.

Other Retailers
Apple Books | Nook | Kobo

Category: Thrillers – Crime