CIA covert operator Savannah James is after intel on a potential coup in the Democratic Republic of the Congo, but she needs a partner to infiltrate the organization. Sergeant First Class Cassius Callahan is the perfect choice, except he doesn't like or trust her, despite the sparks that flare between them. Still, he accepts the assignment, knowing Savannah will pose as his mistress.
They enter battle-worn Congo to expose the financing for the coup. Betrayal stalks them as they follow the money deep into the heart of a jungle where cobalt, gold, and diamonds fund treason. Savannah will stop at nothing to bring down the would-be dictator before he can ignite a firestorm that will engulf all of Africa.
Deep in the sultry rainforest, spy and Green Beret forge a relationship more precious than diamonds, but Cal knows Savannah is willing to sacrifice anything-or anyone-to complete her mission.

USA Today bestselling author Rachel Grant also writes thrillers as R.S. Grant. She worked for over a decade as a professional archaeologist and mines her experiences for storylines and settings, which are as diverse as excavating a cemetery underneath an historic art museum in San Francisco, survey and excavation of many prehistoric Native American sites in the Pacific Northwest, researching an historic concrete house in Virginia (inspiration for her debut novel, CONCRETE EVIDENCE), and mapping a seventeenth century Spanish and Dutch fort on the island of Sint Maarten in the Caribbean (which provided inspiration for the island and fort described in CRASH SITE).She lives in the Pacific Northwest with her archaeologist husband and demanding cat.