Hero Zero is next seen in Out of the Vortex #12.
*Spotlight on Comics' Greatest World's size-changing superhero, Hero Zero! A desert joyride turns into a deadly nightmare when David MacRae and his friends encounter the life force-absorbing menace of Siphon! Can David's alter-ego Hero Zero save the day -- or will the 100-foot hero end up as the main course for a monstrous mutant? *Source: darkhorse.com