The cartel had left him hideously scarred inside and out. If he didn't die from a bullet first, he would die from wanting the beautiful and lethal SpecOps trained woman who was there to protect him. Salvadorian Vipers 16 have stolen enough nuclear material to level major U.S. city, or start a civil war in Central America. After ATF agent Marcus Hernandez had been beaten to within an inch of his life, his facial scars and those on the outside of his body are superficial indicators of the ugly pain he carries deep inside. Resigned to a life alone, because who would want to be with monstrous-looking man, he is willing to sacrifice himself to stop the Salvadoran Vipers from starting a civil war in Central America or killing millions in the USA. As Lady Falcon, Tori Denton kicks ass and takes names, uses men and tosses them away, and lives life to the fullest every day. She's a highly trained special operator who knows tomorrow is not guaranteed so why bother with a relationship that's certain to end badly. In their dangerous hunt for the stolen nuclear warheads, they may find a future worth living for...if they don't get killed first. Unbeatable Love is the fifth novel in KaLyn Cooper's Black Swan series filled with strong heroines and the alpha heroes who dare to capture the heart of a woman warrior. Each romantic suspense features one of the active duty women secretly trained in SpecOps and a member of the Ladies of Black Swan.