Blackheart

Viper It's a name that is infamous within the galactic quadrant. A name that inspires awe.
... and fear.
For nearly a century the famed assassin has struck terror within the hearts of those she has been hired to terminate. In that time the Viper, a human cyborg named Carolyn Whitney, has been a lone wolf. She prefers being on her own, neither requiring nor desiring the company of others. She has very few people she can consider a friend, and now one of those is coming for her. The Viper's latest hit has put her in Earth's crosshairs and Captain Jacob Brown has been tasked with bringing her in. Or, barring that, putting her down. Captain Brown, a genetic augment, has tangled with the Viper before... and lost. Will he prevail in the rematch?