Hulk: Son of Hulk - Dark Son Rising

"When Galactus devoured the alien planet Sakaar, a small group of refugees managed to escape the devastation. Adrift in space, it seemed they were doomed to a life of wandering. But then, a new leader emerged, Hiro-Kala, a former slave with a dangerous heritage. The son of the Incredible Hulk and the Sakaarian queen Caiera, the boy possesses the destructive rage of his father, and his mother's affinity for the mysterious and deadly Old Power. When this formidable new force in the spaceways swears revenge on Galactus, it seems he just may have the power to back up his threat"--Jacket.