The Trials of the Core by Michael E. Thies

In a system home to Creatures of Legend, all-powerful deities, lost Ancients, and reclusive First Bloods, it is time for the Guardian of the Core to choose his new apprentice.

None of these participants, however, know that the Trials will pit them against others who are just as conniving, talented, and motivated to win. None of them know who they are when they enter will not be the same person if they finish. And none of them know that the Trials will test them in ways unimaginable.

With their lives and identities on the line, will one of these would-be heroes find the inner strength and wisdom to emerge a champion and impress the Guardian before the system collapses?