“I couldn't put down this ripped-from-the-headlines novel from a writer who gets all the details right—in The Underhanded, Adam Sikes joins the ranks of the best names in espionage and political thrillers. As his intelligent and complex hero grapples with his past and a threat posed by a secret neo-fascist cabal, you will be rooting for him all the way to the last page.” —Deborah Crombie, New York Times best-selling author 

“The latest by Adam Sikes, The Underhanded, is a ripped-from-the-headlines thriller that left me awed and at the edge of my seat. It’s a suspenseful mix of historical intrigue and present-day repercussions. It reminded me of the spy craft and nerve-rattling storytelling of Ken Follett and John le Carré. A must-read for all thriller fans . . . don’t miss it!” —James Rollins, New York Times best-selling author

“Fast-paced and engaging, The Underhanded grabs you from page one and doesn’t let go! Great storytelling that weaves together rogue spies, ancient secrets, and clever tradecraft—Adam Sikes is destined for great things!" —Ward Larsen, USA Today best-selling author

“The Underhanded is sure to thrill while making you question who’s really wielding power and driving the events that shape our world. Adam Sikes has crafted an intricate, pensive, and action-packed story that blurs the lines between fact and fiction.” —Best Thriller Books

Praise for Adam Sikes

“Landslide is not only a gripping geo-political thriller, but a morally-complex tale. It grapples with fraught questions of both individual and national loyalty as well as killing and the grim realities of war. I read this book over the course of two-white knuckled days that I won’t soon forget. Adam Sikes is a huge talent.” —Elliot Ackerman, New York Times best-selling author

“A gem of a read with mach-speed mayhem, loaded with rich detail from a writer who knows what he’s talking about.” —Steve Berry, New York Times best-selling author

“Adam Sikes is the consummate storyteller. What a fast-moving train Landslide is, a real rollercoaster of a ride, gripping, emotional and thought-provoking. I enjoyed every thrilling second. This is good stuff!” —J. Randy Taraborrelli, New York Times best-selling author

“Sikes imbues the emotionally complex Mason with a palpable sense of grief. Readers will look forward to his further adventures.” —Publishers Weekly

“With an irresistible hook that grabs you from the get-go, Landslide is an action-packed, nonstop espionage thrill ride that will keep you furiously turning the pages. Marine Corps veteran and former intelligence officer Adam Sikes delivers a fast-paced, gritty, supercharged read.” —Andrew Kaplan, New York Times best-selling author

“Landslide is a seismic quake of an international, high-stakes thriller in the grand tradition of Daniel Silva, Brad Thor, and Brad Taylor. Adam Sikes has penned a seminal effort that's bracingly effective in its portrayal of current geopolitical dynamics through the eyes of former Marine, and current expatriate, Mason Hackett. A terrific tapestry of a tale with the kind of stitching that would make the likes of Alistair MacLean and Frederick Forsyth take notice.” —Jon Land, USA Today best-selling author