James Rollins is at it again! This time the backdrop is far from the sweltering heat of Tides of Fire, in Arkangel Rollins takes us to the Arctic via Russia. As a fan of Rollins and his Sigma series, I was even more excited to get through this book because of the addition of Tucker, Kane & Marco. Follow Sigma operatives through the frozen (or not so frozen) arctic chasing the footsteps of Catherine the Great to safeguard the world from a hidden knowledge (or threat?) that we are just not ready for.

Another whirlwind, heart-pounding Sigma Force novel from James Rollins! Commander Gray Pierce and the gang are back, this time racing to unravel centuries-old mysteries, searching for a golden library of treasures, and uncovering shocking truths about a lost continent. Friends (both two- and four-legged) and foes from prior Sigma Force novels as well as Rollins' Tucker Wayne series are back in action, and fans of both series will enjoy reconnecting with these characters, while also welcoming new faces into the Sigma Force world (and perhaps a goodbye or two...?). I'm already itching to see where Rollins takes the team next!

James Rollins does a fantastic job in writing this international thriller element that I was looking for. The characters were everything that I wanted and enjoyed about other books from James Rollins. The concept worked overall with the story and enjoyed the feel of this, it had me on the edge of my seat and left me wanting to read more.