Warrior Children: Champion of the Gatekeeper (The Guardian Series, #2)

Immortal, nonsensical and one of the strongest warriors in all universes, Aaron, High Guardian and son of the Gatekeeper, is sent on a special mission, which determines the fate of two planets. Traveling between Earth and Mars, he joins forces with fellow High Guardian, Edward, and his crew of supernormal recruits.

While on Earth, Aaron portals to Terra-Thath, the land below the surface, to collect precious metals to spread throughout Mars, with a plan to revive the atmosphere and vegetatio...