From publisher blurb:
The party is tasked with finding a lost researcher for an exclusive league of magical explorers. The lost eldritch archaeologist was in search of the fabled Crown of Eternity. This is a quest adventure, with the following goals:
Bring back the explorer . . . dead, alive, maybe a bit of both
Cross a vast ocean, a treacherous desert, and a poisoned sea, beset from ahead and behind by competing factions and dire threats
The party must succeed where a rival daredevil failed: find the Crown of Eternity, snatching it from his grasp if necessary
This is a patronage quest, and introduces the Indhyna League, a mysterious and well-funded group of treasure-seeking mages and scholars. They very much have their own agenda.
The last page of the adventure contains 42 print-them-yourself tokens for monsters and NPCs that appear in the adventure (in black-and-white).