One of Master of Spells Sorrina Westyr's former adventuring companions vanished to the Plane of Earth and was presumed dead. She has recently resurfaced along an old road between the Plane of Earth and the Plane of Fire—one that even the warring forces of the planes' greatest cities had abandoned—and has shown little interest in discussing her circumstances with the Pathfinder Society. Can the PCs uncover why she disappeared and enlist her help in reaching a site on the war-torn and volcanic borderlands?