Adventure description from Home Play Edition front page:
Lost for untold ages, the Isles of Woe have resurfaced deep within the waters of the Nyr Dyv. The legends say little about the mythical Isles, but one thing is certain. The Isles were a place of powerful magic and even more powerful enemies. What caused their mysterious disappearance in the pre history of Oerth and perhaps even more importantly, what has caused them to return? For Characters Levels 6-8, although adjustable for characters 4-12. This event has a playing time of approximately 16 hours.