Star Wars graphic novels. Darth Vader (2017)

"Never betray a bounty hunter -- especially if it's Boba Fett! Years ago, Valance and Bossk joined Fett on a mission that went sideways in a bad way -- thanks to a violent betrayal by Valance's mentor, Nakano Lash! The trio barely escaped with their lives. Now Lash has finally resurfaced under mysterious circumstances, and every bounty hunter in the galaxy wants a piece. Valance is hell-bent on getting to the prize first -- after all, he has a score...