Alliance

For centuries aliens have waged a covert war for control of Earth using time travel as a weapon. A select group of humans become their soldiers, genetically modified pawns destined to be caught in the crossfire. But this time, the pawns have a plan of their own...and the fate of all mankind rests in their hands.
M.L. Callahan is a science fiction fanatic, a full-time author, and currently resides in Colorado. The Timewalker Chronicles is a series ten years in the making featuring time travel, aliens, special ops, genetic engineering, action, adventure, danger, gadgets, spaceships, and romance. Don't miss it!
Fans of complex world building, alternate realities, and non-stop action won't want to miss Callahan's books!

"Unique, intriguing and impossible to put down." - Nerdy Girl Book Reviews

Fans of Kresley Cole's Immortals After Dark, Sherrilyn Kenyon's League Series, or Karen Marie Moning's Fever Series will not be able to resist Callahan's complex world building, twisting plot lines, or unique premise. Callahan writes something brand new in the science fiction arena with character driven stories that read more like adventure books than hard science manuals. The Timewalker Chronicles are like nothing you've ever read before. Don't miss this series.