The Forsaken Prison of the Twilight Savant
Part 4 of the Plague of Madness series
The Twilight Savant is a 5th Edition adventure for 4-6 characters of 3rd-level and is optimized for a party of four characters. This adventure sees the party investigating a dungeon hidden beneath the city of Wheldrake, to chase down the villain and attempt to thwart his plans to release a great evil from within. Although this adventure is part of the larger Plague of Madness adventure series, you are free to place it into any setting that you like.