Books like A game of ghosts by John Connolly

A boy named Samuel Johnson and his dachshund, Boswell, must evade relentless demons hunting Earth after thwarting a previous invasion.

Former NYPD detective Charlie "Bird" Parker, haunted by his wife's and child's murders, hunts a ruthless serial killer from New York to the South, confronting his own dark instincts.

Glasgow’s underbelly is rocked when a small‑time heroin dealer is found dead, forcing a detective and an aspiring actress/private‑investigator to chase tangled clues and a missing mentor.

In the racially charged streets of South Carolina, a dead‑beat gumshoe, Charlie "Bird" Parker, is pulled into a web of murder, crime and the supernatural as he hunts an unseen killer threatening his own life and love.

Private detective Charlie Parker tackles a case of assassins targeting members of their own organization.

In the quiet English town of Biddlecombe, Samuel Johnson, his dachshund Boswell, and a cynical demon friend team up with dwarves, police and polite monsters to stop a multiverse‑wide threat that begins when a new toy shop opens.

Actress‑turned‑private‑investigator Jasmine Sharp and Detective Superintendent Catherine McLeod uncover a tangled web of murder, occult rituals and Scotland’s art scene when a missing sister’s disappearance turns into a homicide investigation.

Former CIA operative Lemuel Gunn turns to private investigation in New Mexico, where a mysterious bail bonds case and a vanished drug dealer pull him into a tense, drug‑fueled thriller.

Private investigator Charlie Parker, wounded and weary, returns to a quiet Maine town where he meets widow Ruth Winter and her daughter. Secrets linked to a WWII concentration camp surface, forcing him to confront dangerous pasts.

Private detective Charlie Parker is hired to uncover the identity of a young woman found dead in Maine’s woods, along with her missing child, while another mysterious party seeks something more.

When a long‑lost brother’s death rocks his life, detective Isaiah Quintabe must chase a missing DJ through Las Vegas’s underbelly, uncovering crime, love, and danger in a high‑stakes thriller set from East Long Beach to the desert Southwest.

"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.

Former Miami detective Max Mingus faces a deadly hunt for a kidnapped boy in Haiti, confronting voodoo myths, corruption, and his own past as he pursues the enigmatic Mr. Clarinet.

When a bloody young man bursts into the Sydney office of Private Investigations, the agency’s new office is thrust into a sudden, deadly case that will test the team’s skills and resolve.

After his mother dies, 12‑year‑old David escapes into the stories that once comforted him, only for myth and war to collide in a world where a Crooked Man and a faded king rule over wolves and hidden secrets.

When Emily Kane finds her family missing at her sister’s house in Las Vegas, she turns to former boyfriend David Raker, a missing persons investigator, to uncover a decades‑old cover‑up and a trail of bodies.