Sister. Sweetheart. ASSASSIN! Archer and Armstrong…and Mary-Maria?! Archer's beloved foster sister and world-class hitwoman-for-hire, Mary-Maria, takes center stage for the very time in a high-stakes tale of hot-headed teenage temperament and tantalizing target practice! In search of her own origins, get ready to see the world through the eyes of Valiant's number one knife-wielding love interest - just as the world of Archer & Armstrong hurdles towards next month's colossal, issue #25 game-changer!