From the introduction:
This is the 3rd adventure in the Southcrypt saga, which provides a series of adventures in the Sword Mountains region of Forgotten Realms, found north of Waterdeep. This adventure provides an overview to the upper sections of the actual Southcrypt Dungeon. Several updated monsters can be found in the appendix, including the storoper, vargouille, and norker goblin. The final encounter is with a vampire spawn who answers to the giant vampire Morg, who is found in the lower levels of the dungeon.
This adventure, like the previous Southcrypt modules can be played as a continuation of the D&D starter adventure Lost Mine of Phandelver, or as a standalone adventure without having needed to play any of the prior modules.
A 2-4 night adventure for 5th-7th level characters.