Temple of Orcus

An evil cult has reclaimed an abandoned temple hidden in the mountains. Although time and neglect have taken their toll on the place, the cultists were pleased to find an undamaged statue of Orcus, the Demon Prince of Undeath, in the temple’s heart.
The temple was carved over a century ago by devout followers of Orcus. Twenty years ago, adventurers stormed the temple, slew the cult leaders, and scared away the remaining cultists.
The place stood abandoned until a few weeks ago, when Nezzarum the silver dragon discovered it and started exploring it as a potential lair. By sheer coincidence, Xia and her followers arrived days later to reclaim the temple in Orcus’s name.
 

Attempted a 1 to 1 as much as possible from The Will of Orcus module from the Dragon Delves book.