Thief vs Riven 

Garrett of the Metal Age transports to the Riven Age. Did the Keepers send him there or was it the hand of fate? The Riven Age is about to end and the only person assigned to save its people is now dead. Believing that he carries the Journal of Lost Souls, Garrett has no idea that it only entombs the soul of Gehn. As luck would have it, he hand delivers the book to Catherine. Unfortunately, he has no ideal what she's instructing him to do.