Hunted by the pack! The Outliers, still finding their place in the mutant world, are hunted by a lethal new set of foes: a bloodthirsty, relentless and unstoppable pack of stealth Sentinels! Cut off from their mentors and allies, with no knowledge of who built or aimed these deadly drones, the four untrained mutants are completely unprepared for the violent hunters making them their prey! There's nowhere to run and nowhere to hide as the Outliers face the bone-chilling Bloodhounds! And if they survive the experience, the Outliers will discover the true meaning of Haven House and a doorway that should never be opened. Meanwhile, an otherworldly presence sets its covetous eye on one of the four young mutants in a story that reveals a never-before-told slice of the history of mutantkind! Who will be the Voice of Darkness?! Plus: The smoothest X-Man, Remy LeBeau, A.K.A. Gambit, is forced to face his past as an unstoppable force comes to collect a debt, whether from the Cajun's pocket or his hide!