Bernadette Callahan

When two killings take place thousands of miles apart in Canada and Alaska, Detective Bernadette Callahan's instincts tell her there's a link. But her superiors disagree, and they move to silence her. Undeterred, Callahan delves deeper and finds an ally deep in rural Alaska. A fellow detective, also under pressure to close his inquiries. The pair are forced into the shadows to work, where they uncover unlikely suspects and a conspiracy linked to Alaska's billion-dollar oil supply.

In this gripping thriller, Detective Bernadette Callahan faces an industrial accident that defies explanation. When she delves into the bizarre death, a terrifying revelation emerges: a virus that attacks both metal and humans. With the world at stake, Callahan must probe the criminal underworld for answers.

Detective Bernadette Callahan embarks on a journey to find the one man who might hold the key to North America's climate crisis. From the depths of an undersea lab off Florida's coast and the lakes of Nicaragua to the frozen reaches of the High Arctic, she'll stop at nothing to uncover the truth and prevent catastrophe.

Detective Bernadette Callahan's impulsive nature has landed her in hot water before, but this time, the stakes are higher than ever. A heated argument drives her fiancé to take a dangerous security job in Afghanistan. When he disappears and is accused of stealing a sacred artifact, Callahan is left guilt-ridden and desperate for his safe return. Callahan embarks on a perilous rescue mission in Kandahar, where she teams up with a terrified interpreter and a stoner bodyguard.

When an Irish priest narrowly escapes an attempt on his life at a remote Canadian Seminary, Detective Bernadette Callahan finds herself entangled in a mystery that hits unexpectedly close to home. As Callahan delves deeper into the case, a sinister plot emerges, reaching back to the misty shores of Ireland, where ancient tales and myths hold the key to the mystery.

A honeymoon cruise turns deadly when a detective uncovers a sinister plot aboard a luxurious ship. Mysterious deaths plague a luxury cruise ship as it sails from Singapore to Sri Lanka with only two hundred wealthy passengers. With the ship's security seemingly powerless to investigate and the...

A missing witness. A global crime ring. No good leads. Can Detective Callahan solve the case before it's too late? Detective Callahan faces her most challenging case yet. She is pregnant with her first child and assigned to desk duty with firm orders to stay off the street. Five years after the...

When Detective Callahan's instincts scream that a suicide is actually murder, she knows there's more at play—especially when the victim's employer is tied to international smuggling. Uncovering the truth will put her life at risk; these criminals have tried to kill her before and won't hesitate to try it again. Now, as a mother with a two-year-old daughter, Callahan faces a difficult choice: risk everything to expose the killers, or walk away to protect her family. With each new lead, the danger only grows.