Kevin Tumlinson

When Gail McCarthy, granddaughter of one of Manhattan’s wealthiest real estate moguls, brings an ancient stone to Kotler’s attention, Dan Kotler 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....

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....

More than a century ago, Earth was suffering under the weight of overpopulation and ever-dwindling resources. Humanity’s best and brightest were commissioned to create a means to escape the overcrowding of Earth, and to branch out and live among the stars....

It's been more than a century since humanity escaped the overpopulation of Earth, expanding out among the stars. We've faced and overcome war with an alien race. We've survived terrorist attacks....

Adam Bolland, a manager at the Colorado Springs municipal water treatment facility, is only trying to enjoy his career, family, and life....

Adam is on the run, and time is running out. His family has been taken from him, and he's working to unravel the secret that someone is hiding from him....

Against all odds, on an unchartered world, the souls of First Colony have been restored to life, and a centuries-old wrong has been righted - sort of. On the planet's surface, a young woman struggles to reclaim her mind from the strange aftereffects of the cancellation wave....

The Citadel tower stands in ruins, while hundreds lie injured or dead. On distant Earth, a powerful madman prepares to seize control of the lightrail, in a move that will change the fate of humanity and the Esool alike....