The Darkness of Evil | Karen Vail Novel Series #7 | A Book by Alan Jacobson

The Darkness of Evil

Now Available

The latest installment in the award-winning, critically acclaimed Karen Vail series from USA Today bestselling author Alan Jacobson features esteemed FBI profiler Karen Vail on the hunt for an escaped serial killer…

Karen Vail Series

Karen Vail is no ordinary FBI agent.

She’s a profiler, brought to life by Alan Jacobson’s seven years of unprecedented access to, and research with, the FBI’s Behavioral Analysis Unit. The Karen Vail series has been raved about by reviewers, readers, law enforcement officers of all stripes, real FBI profilers…and even one of the legendary founding fathers of the Behavioral Analysis Unit in Quantico.

Karen Vail Novel Series | Karen Vail is no ordinary FBI agent. | Novels by Alan Jacobson

OPSIG Team Black Series Novels

America’s safety is on the line!

Missions the United States government cannot sanction–or acknowledge–fall under the purview of OPSIG, the Operations Support Intelligence Group, run out of a secret office in the basement of the Pentagon.

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Alan Jacobson

Meet Alan Jacobson

I’m often fascinated by how and why things happen—and how chance meetings and random occurrences, years later, can have an enormous impact on one’s life. There are many such examples to choose from, but I’ll share two with you because of the impact they had on my writing career.

Authors Studio: Meet the Masters

International bestselling author Peter James sits down with Alan Jacobson to talk about Alan’s writing process, his advice for authors, where and how he writes, and more. Sit back and enjoy Peter James TV’s Authors Studio: Meet the Masters, featuring Alan Jacobson.

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​Martini Productions Interview

Host Jessica Mazo of Martini Productions interviews Alan Jacobson at ThrillerFest about his two series, the OPSIG Team Black novels and the FBI profiler Karen Vail books—and the close quarters combat training he did in the Phoenix desert with Chris Kyle’s Craft International.

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Books du Jour PBS NYC interview

Alan sits down with PBS’ Books du Jour host Frederic Colier to discuss the sixth Karen Vail novel, Spectrum, why he chose to take us back in time to Vail’s first day on the job with the NYPD as a beat cop—and his 9/11 dilemma.

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Book Case TV interview

Alan talks with Book Case TV’s Frederic Colier about No Way Out, how he found himself face to face with a real FBI profiler more than two decades years ago, and how that profiler became instrumental in helping him shape all of the Vail novels.

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No Way Out trailer

FBI Profiler Karen Vail returns in her fifth adventure, No Way Out, a high-stakes thriller set in England. Join Alan on location in London as he brings Karen Vail to your doorstep and touches on some of the problems Vail faces assimilating to the British culture—and the off-limits places Alan visited during the course of his research.

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Recent Books by Alan Jacobson

The Darkness of Evil | A new novel by Alan Jacobson

The Darkness of Evil (Karen Vail #7)

The latest jaw-dropping thriller from USA Today bestselling author Alan Jacobson, featuring esteemed FBI profiler Karen Vail, on the hunt for an escaped serial killer …

Spectrum, a book by Alan Jacobson

Spectrum (Karen Vail #6)

Authoritative, compelling and crisp, Spectrum moves with a velocity that seems to make the pages turn themselves.

The Lost Codex | A novel by Alan Jacobson

The Lost Codex (OPSIG Team Black #3)

From the first page, you know you’re in the hands of a storyteller at the top of his game: The Lost Codex has nonstop action, living-breathing characters, rich detail …”

No Way Out | A novel by Alan Jacobson

No Way Out (Karen Vail #5)

“Jacobson mixes rocket-paced suspense with fascinating history in this thrill ride of a book.”

Hard Target | A novel by Alan Jacobson

Hard Target (OPSIG Team Black #2)

An enigmatic covert operative. A skilled FBI agent with a dark past. And a terror plot unlike any in history.

Innmate 1577 | A Novel by ALan Jacobson

Inmate 1577 (Karen Vail #4)

“Inmate 1577 is another rippin’ good ‘Alan Jacobson read’! Jacobson researches his books like a good newspaper reporter, and then pushes the envelope …”

Stand Alone Thrillers and Short Stories

False Accusations | A stand alone thriller by Alan Jacobson

False Accusations

“Alan Jacobson has crafted a riveting story with a truly frightening villainess. This is a terrific book!”
John Saul, New York Times bestselling author

Double Take | A stand alone Short Story by Alan Jacobson

Double Take

“Alan Jacobson writes with a sure hand, a strong voice, and a fine eye for detail.”
– Ridley Pearson, New York Times bestselling author

Fatal Twist | A stand alone Short Story by Alan Jacobson

Fatal Twist

“Karen Vail is a knockout, tough and brilliant.”
– Tess Gerritsen, New York Times bestselling author & creator of Rizzolli & Isles TV series

Our Blog

Fidelity. Bravery. Integrity. FBI.

As part of the ongoing research for my new book, I spent a few hours last week meeting with the Special Agent in Charge at one of the FBI’s busiest, and largest, field divisions in the country. And although I’ve been working closely with the Bureau for almost a...

Government waste is not a partisan issue

I saw an article yesterday about Vice President Pence flying cross-country on Air Force Two to attend the San Francisco 49ers game. Only he left during the national anthem--before the game began. And he told his secret service detail to keep the cars where they were...

Evil Exposed

The Darkness of Evil: what happens when a daughter discovers her dad is a serial killer? A couple of years ago I started wondering what it would be like for a daughter to discover that her father is a heinous murderer of women. What would she feel? Denial? Or a sudden...

Drop that weapon! You’re on Candid Camera

With the recent spate of clashes between law enforcement officers and citizens, many civil rights experts have stated that the outcome of the police investigation would’ve been different had the defendant possessed a video recording of the encounter. On the surface,...

Elmore Leonard

“Hey. Can I share something with you?”   Writing dialogue takes years of practice. I developed the ear during an experimental theater workshop during my English undergraduate studies at Queens College (that’s Queens as in New York, not England). My professor, Richard...
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