Trials of the Chief Royal Scales Book 3

Without his memories, Jay's body holds power that is beyond his understanding. Slowly, as he revisits old haunts, his memory begins to return in vivid flashes, but he can't make sense of the things he remembers. Each use of his abilities reveals something darker and more primal, building a need for release–a release that remains out of his reach as he can't tap into this need and what form it should take.

The Hidden could help but they have plans of their own which require Jay to stay clueless.

Without full access to his memories Jay can't tell friend from foe and flounders in a world he can't understand.