The adventure starts when a wealthy noble hires the party to travel to a chain of remote islands off the Sword Coast, looking for some missing islanders. The noble fears for the safety and well-being of these locals and is willing to pay handsomely to discover the problem. However, recent reports of other residents missing from the other two nearby islands increase the mounting tension for action.
Our story begins at the Kiir Tel' Alu (Jewel of the Sea) for a night of luxury. The party receives the finest food, drink, and other lavish amenities offered at the resort. After a luxurious night, Osonia offers a large reward to an adventuring party who can brave the harsh oceanic conditions and travel to the Cimarine Isles.
Worrying that her clan is in trouble on the island, Osonia wants the party to travel to the islands and discover why people are disappearing. Fearing the worst, Osonia needs competent adventurers to make the dangerous aquatic journey to the island to check on the inhabitants and, if necessary, rescue them.
The adventure is in two parts: the first is a nautical trek through the unforgiving ocean's currents and waves, with its own share of danger. The second part occurs in the Cimarine Isles, where the party must solve a mystery and discover who or what is taking these innocent people.
- from the publisher's blurb