Shadow Survivor by Christy Barritt

She’s his only hope . . . and now she’s in the crosshairs.

Heidi Myers thought her job as an executive assistant at Blackstone Security was mostly paperwork and coffee runs. But when a rogue agent ambushes her, Heidi is thrust into a world where danger lurks in every shadow.
Stephen Garner’s former boss at Blackstone tried to kill him. Now, Stephen needs help bringing the man down. He needs someone on the inside, and he knows just the person to ask. But convincing Heidi to help is one thing . . . keeping her alive is another matter entirely.
As a sinister plan unfolds, Heidi and Stephen find themselves plunged into a high-stakes game of espionage where every choice could be their last. With enemies closing in and time running out, can Heidi and Stephen expose the truth before the enemy claims their lives? Or will the architects of this deadly scheme silence them forever?