Soulmates found one story at a time.

A thousand years ago, all thirteen mages united, and enlisted shifters and vampires not capable of love into a coalition to wipe out all Dragas, and women who might become Dragas.

During this time, Riordan, Tazraus and Requiescere disappeared. Stryx lost his ability to feel anything, Selene went into a catatonic state, and Sora was broken.