The new heroes of Varisia have stumbled upon a powerful relic from the ancient empire of Thassilon; but the artifact has been divided into seven fragments. The third of them is located in the marshy Thick Marshes south of the city of Magnimar, hidden in an ancient and elevated lighthouse known as the Lady's Light. With bellicose boggards, troglodytes, and other swamp monsters inhabiting the surroundings of the ruins, approaching the Light will require either stealth or bravery. But the threats posed by the leggy and scaly humanoids pale in comparison to the exiled Gray Maidens who have claimed the interior of the Light as their new headquarters, or the sinister curse that afflicts the powerful and ancient caretaker of the ruins.