Citadel by the Sea is an AD&D gaming module for 4-8 characters, each of 1st to 3rd level. The fewer the characters available, the higher their levels should be. Characters should be well equipped, with at least one magical weapon apiece, but do not need any particular game experience. It is recommended that at least one ranger character and one elf character be members of the adventuring party, and that no player character be a half-orc. The Dungeon Master should read the entire module carefully before running this adventure; the events are laid out in the approximate order in which characters would normally encounter them, and the text builds the adventure as one reads through it.

Indomitable it stood for centuries, a symbol of order in a world of chaos. Bastion of the pass through the Kamph Mountains, the very stones of the Keep of Adlerweg were the stuff of legends. What evil power had strength enough to take it? How were its defenses swept aside? Fell creatures now attend the battlements that overlook the only pass between Berghof and the sea. This is not a pretty problem to be solved by the militia of the local villages. These and more may be needed to withstand the mayhem stirred up by the fall of the keep. Indeed, if the Keep is not retaken, and retaken soon, the Hold of the Sea Princes itself may not be secure. Now is the time for heroic action. Aided by the Sentinel, former protector of the legendary Guardians of Adlerweg, have you the courage and the determination to rid the keep of its sinister occupants? UK3: "The Gauntlet" (1984), by Graeme Morris, is the third UK-series adventure and the second half of the two-part Adlerweg series. It was run as the final round of the GamesFair 1983 AD&D Open (and won by a RuneQuest fan!). It was then published in 1984. TSR 9111

With the Heart of Light secured, the adventurers now pursue the Ebon Stone, hidden in a remote keep. Part 2 of 2. Part 1 titled The Heart of Light. Pgs. 43-52