Books like Undercurrents by Ridley Pearson

U.S. Marshals Teddy Daniels and Chuck Aule investigate a missing patient on Shutter Island’s Ashcliffe Hospital, only to confront sinister experiments and psychological horrors that threaten their sanity.

Detective Gus Ramone and former police partners investigate the looming return of a serial killer in Washington, D.C., weaving crime, relationships, and community gardens into a tense mystery.

Retired colonial policeman Luke Fitzwilliam returns to England to investigate a series of murders reported by a woman he meets on a train, including a threat of a serial killer targeting a village doctor.

When a coastal dog retrieves a bone that turns out to be human, Isa Wilde’s idyllic village of Salten is thrust into terror as her childhood friends uncover a dark secret, unraveling their shared past.

Eve Dallas races against time to protect a 9‑year‑old witness after a brutal family massacre in 2059 New York City.

In the midst of an international conference in Scotland, Inspector Rebus is left alone to investigate a mysterious death at Edinburgh Castle, racing against time to uncover a sinister plot that could endanger world leaders.

Inspector Hannasyde investigates a poisoned death in the wealthy Matthews family, where each member hides motives as they begin to die one by one.

Detective Inspector Thomas Lynley and partner Barbara Havers trail a serial killer in London, confronting race politics and police turmoil while hunting the psychopath who strikes in a ruthless pattern.

Detective Daphne Matthews, a Seattle police forensic psychologist, investigates a murder beneath the Aurora Bridge while confronting her own past and being stalked by an unseen threat. The case spirals into the hidden underground tunnels of Seattle, testing her survival skills.

"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.

Miles Kinnear thought Susan Ackroyd was the pushiest woman he'd ever met. She thought he was irresponsible. And yet, working with him every day, Susan was finally forced to admit he was good to have around--especially now. First, her boat was sabotaged, nearly drowning her. Then there were the threatening phone calls, her sister's unexplained fears and her brother-in-law's odd behavior. The final straw: the car bomb. If danger hadn't threatened, Mike would never have guessed that Susan had such hidden strength. And Susan never would have realized Mike knew so much about love. This situation has brought them together. But can they both get out alive?

A fast‑paced detective thriller set in Washington, where personal and procedural investigations collide.

Seattle detective Lou Boldt’s life unravels when his wife’s former lover, computer specialist David Hayes, resurfaces to recover embezzled funds tied to the Russian mob, forcing Boldt to juggle duty, vengeance, and family safety.

A fast‑paced police procedural set in Seattle, following detectives Lou Boldt and Daphne Matthews as they tackle a gripping mystery that tests their investigative skills and psychological insight.

Number 35 The Hill, a disturbing crime story involving a kidnapping and investigation by police detectives.

In a hidden world beside ours, Maya, a woman of the Harlequins, races from London to Los Angeles to protect two brothers who may be the lost Generations of Travelers—prophets who shaped history while remaining invisible to modern surveillance.

LAPD detective Hieronymous (aka Harry) Bosch is a loner and a nighthawk. Called out on a routine drug overdose case, Bosch soon realises that the victim found lying in the Mullholland Dam drainpipe is no accident case. Billy Meadows was a fellow 'tunnel rat' in Vietnam and Harry swears to bring the killer to justice.