Nate

History has its secrets, and someone wants them all.Behind six feet of steel, buried under the streets of Manhattan, lies the Black Chamber—a room that once housed a team of codebreakers who would one day help to found the NSA. “Imagine a writer that combines the best aspects of Cussler, Rollins, Berry, and Brown all into one. That’s Kevin Tumlinson.” —Ernest Dempsey, Author of The Forbidden Temple Abducted by a brutish professional killer, two physics professors are left with little food and limited air. Time is running out. Agent Roland Denzel and Dr. Liz Ludlum are led to a ...

When an ancient map of Antarctica is found to be a forgery, it reveals an enigma of history and a terrifying modern-day threat.For the past two years, Gail McCarthy has been a constant source of danger and chaos in the lives of Dan Kotler and his FBI partner, Roland Denzel. Her vast smuggling empire empowers her to move about in the world without the worry of capture, as she spearheads criminal activities on a global scale. Guns, drugs, human trafficking—there's no black-market industry she doesn't touch or flat-out control, and she has the power to continually stay ahead of the world's ...

When Broadway star Maggie Hamilton disappeared five years ago, it was a mystery that captured the imaginations of everyone. When her body turns up in the tomb of a Mayan god, it opens the door for an evil that could consume the world. Dan Kolter and Agent Roland Denzel are back, and just in time, as a new threat emerges that could mean the end of all humanity. A mysterious figure has his sights on the contents of a lost Mayan tomb, and Kotler and company will need to use all of their resources, intelligence, and any luck they may have to keep an ancient curse at bay. In this fourth full-...

Famed rock-star-turned-philanthropist Ashton Mink is murdered in his Manhattan high-rise apartment, leaving behind the words “Devil’s Interval” as the only clue to the killer’s identify or motives. Dan Kotler, archeologist and consultant with the FBI’s new Historic Crimes Division, and Agent Roland Denzel, of the FBI, are called to the scene of Mink’s murder, and asked to help in the investigation. What they discover is a secret project, based on the research of historic figures such as Sir Isaac Newton, that could alter the course of history and enslave humanity.

Dan Kotler, independent researcher and archaeologist, is winding down from the events surrounding the theft and recovery of the Coelho Medallion, and discovering that the fallout of this history-altering adventure reaches further than he’d imagined. As academic colleagues shun him and the press hounds him, Kotler finds himself looking for a new purpose. When Gail McCarthy, granddaughter of one of Manhattan’s wealthiest real estate moguls, brings an ancient stone to Kotler’s attention, he finds himself embroiled once again in intrigue, jeopardy, and mystery.

An ancient medallion is unearthed in Pueblo, Colorado, revealing a secret that will rewrite the history of North America - the Vikings somehow made it to the continent's interior, centuries before Columbus made landfall, and there they built a city of gold. But today the Coelho medallion has been stolen, and a linguist and researcher has been abducted in connection with the crime. Could the abductors be after the fabled city of gold? Or do they have a more sinister plot in mind?