Solo Adventure 13.

"You're tough - an experience adventurer who has returned from countless dark expeditions. But tonight you overindulged at the Red Guardian Inn, a local tevern in Gull, that place known as The City of Terrors. As you left theinn, you were taken by surprise and overpowered by ruffians even stronger than yourself. But just as suddenly, your attackers were surprised by the local constabulary! To hide the evidence, the scoundrels dumped you unceremoniously down a sewer drain ... down into the Sewers of Oblivion. With the aid of a small, demonic boatman, it's up to you to find a way out."

"This solitare takes place beneath the City of Terrors, but is not directly connected with that solitare adventure. Sewers of Oblivion is not for novice adventurers - instead, characters up to 7th level, with as many as 425 combat adds, will find a challenge or two within. However, less mighty characters (150-300 combat adds) will find a more exciting adventure, and greater rewards in the end."