The Beggar's Pearl

Publisher blurb: When a thief arrives at the Pathfinder Lodge in Almas bearing stolen artifacts and writings pointing the way to a lost dwarven gallery, you are sent into the rugged Aspodell Mountains to find the famed dwarven explorer last known to be searching for the gallery as well as the gallery itself. Once there you find a tangled web of darklands creatures in the thrall of a charismatic cult leader with ties to the darkest shadows of the First Realm.