Installation Instructions:
1. Move the hallsofdeath.esp to your Skyrim Data folder (usually in Program Files (x86)\Steam\steamapps\common\skyrim\Data)
2. Enjoy!

To find the dungeon, move to the mountains west of Riverwood. It is at the southern part of the mountains, west of Anise's Cabin and southeast of South Brittleshin Pass.

It should be compatible with all other vanilla skyrim mods, as long as someone didn't put a dungeon in the same place!