Her kiss may be deadly, but he's indestructible. Erasmia "Mia" Baxter is her agency's most lethal operative, genetically engineered to have poisonous saliva. But having the kiss of death is hell on her social life. Her future holds no romance, no family, no intimacy of any kind-only killing for her country. When her special ops group hears rumors that America's first enhanced soldier-Vanguard-may be more deadly weapon than savior, Mia is tasked with infiltrating his inner circle to investigate. What she finds is a former military asset with a hidden dark side-and the only man she can kiss without consequence. Intoxicated by the obsessive passion rising between them, Mia falls deeper into lust with each new sensual encounter. But the closer they become, the more she realizes there might be truth to the rumors. Vanguard is changing-becoming more violent, more devious, less... human. And the truth of her identity might push him over the edge entirely. In a world where heroes and monsters are separated by the thinnest of lines, Mia must decide: Is the man she's falling for worth saving? Or is he the weapon he was created to be-one that will destroy her first?A dark romance special ops spy thriller with a post-dystopian sci-fi bent-VANGUARD has the gripping twists and turns of BLACK DOVES paired with the seductive intensity of Runyx's DARK VERSE series.