Less than a decade ago, the Pathfinder Society established a lodge in Nirmathas, an act that infuriated the nation's expansionist rival Molthune. The latter outlawed the Society soon after, and ever since Pathfinders have relied on smugglers like the Varisian entrepreneur Guaril Karela to slip supplies past the Molthuni blockade for both the lodge and the Society's war-torn neighbors. Something has intercepted those shipments. Can the PCs uncover the culprit and save the Society's reputation in Nirmathas?