The Star Source Chronicles: The Abyssal Rift on Earth

A post-apocalyptic medic. The planet's core star-source realm opens, its barrier breaks, and Earth is a hundred times larger. All races return, along with evolutionary talents.

Ancient creatures from deep within the planet are a hundred times larger than previously believed, and some have even mutated... It turns out the life on the surface was the seed that had been preserved, surviving and reproducing on the surface protected by the barrier. Now the entrance has opened. The planet's core star-source... it was actually...