When a Pathfinder Society Priest of Nethys disappears in northern Geb while studying the Mana Wastes, the Society sends you to uncover his whereabouts and find his journals. Arriving in the town of Bitter End, you find it deserted but for a few mysterious creatures never before seen on Golarion. Those creatures quickly lead to more and soon you're embroiled in a mystery that could affect the very fabric of reality. Will you solve the mystery of Bitter End or find yourself lost forever in the Mana Wastes?