The Enigma Codex, apparently it's pages lost except for a few. We have in our possession at least some of it. Alexander lay at the bottom of the lake in the Dravanian Hinterlands until the Illuminati infused its core with aether to make it into a Primal.

We've got an ally in the name of a woman named Mide. She seems to have some insight to the teachings in the codex.

Good. No stone unturned then.