Books like Watchers by Dean Koontz

Odd Thomas and his soulmate Stormy Llewellyn, together with a ragtag group of allies, navigate a dark desert landscape where past and present collide. As murderers and supernatural forces emerge, they race to stop a looming cataclysm.

When a murderous sociopath stalks her friends in Napa Valley, former survivor Chyna Shepherd must guard herself and an innocent stranger, risking life and sanity to confront the deadly intensity of Edgler Vess.

In the secluded town of Snowfield, California, a shocking mystery unfolds after 150 people are found dead with grotesque injuries, sparking a chilling investigation into a mass murder that blurs the line between good and evil.

When a sterile silver rain engulfs a quiet Californian mountain town, a couple and neighbors discover that all communication has vanished and a hidden menace now stalks them, unveiling an apocalypse that threatens the world.

Two isolated individuals flee a clandestine, illegal agency with a secret fascist agenda, chased by a ruthless operative who wields full governmental power.

Following a near‑fatal accident, Hatch Harrison is revived and, alongside his wife, learns to value life anew. Yet a darker force resurfaces, linking his mind to a murderous urge he cannot fully control.

Bestselling author Cubby Greenwich faces a cruel review from the enigmatic critic Shearman Waxx, leading him into a deadly confrontation with a ruthless sociopath who threatens more than his life.

In Greenwich, south‑east London, Met Police’s murder squad is summoned to investigate a grisly murder scene where five young women have been discovered dead in a ritualistic manner.

Detective Mark Valdez, a psychic cop, teams with witch-guardian Diana Tregarde to stop a serial killer who is the avatar of the Aztec god Tezcatlipoca, threatening to transform North America into a new Aztec realm.

A teenage boy witnesses Jack the Ripper’s final murder and pursues the killer across the Atlantic to New York, then through the American West.

Space Dog, who is really an alien from the planet Queekrg, has a hard time pretending to be a watchdog when Roy's father goes away on a business trip.

When a dog‑whispering mentor is murdered, private investigator Melanie Travis must navigate suspects and protect her family, juggling motherhood and six poodles amid a dark mystery.

"I very much need to be dead." These are the chilling last words left by a man who had everything to live for but took his own life. In the void that remains stands his widow, FBI agent Jane Hawk, surrounded by questions destined to go unanswered unless she does what all the grief and fury inside her demand: Find the truth, no matter what. People of talent and accomplishment, people seemingly happy and sound of mind, have recently been committing suicide in surprising numbers. A disturbing pattern is beginning to emerge. Jane is determined to give up everything to find out why. And if that means going rogue and becoming America's Most Wanted, then so be it. Those arrayed against her are legion, and devoted to protecting something profoundly important-or terrifying-enough to exterminate any and all in their way. But Jane is as clever as these enemies are cold-blooded, as relentless as they are ruthless. And she is driven by a righteous rage they can never comprehend. Because it is born of love.

In the picturesque oceanfront town of Bella Vista, a series of mutilated disappearances turns the idyllic coast into a nightmare. Archaeologist grant Peterson and newcomer Stephanie Cahill must uncover a dark secret before more lives vanish.

Follow your adventure as you help locate Homer, a spirited dog who has mysteriously disappeared, and choose the path that sees him safely back home.

Psychic detective Ryerson Biergarten teams up with law enforcement to investigate a serial killer in a series of terrifying, office-based murders.