The Sanctum of Dreams
Part 1 of the Plague of Madness series
Sanctum of Dreams is a 5th Edition adventure for 4-6 characters of 1st-level and is optimized for a party of four characters. This adventure sees the party investigating a ruined temple, seeking answers to a rise in undead attacks and to discover the fate of another party of adventurers who went before them but never returned. Although this adventure is part of the larger A Plague of Madness adventure series, you are free to place it into any setting that you like.