From publisher blurb:
Many years ago, a fanatic cult claimed a sanctuary as a base for plotting their wicked ways. They named their redoubt the Temple of Mercy because it is where new followers would journey to repent of their sins and be granted mercy. It is unclear how the cult was defeated, but they vanished nearly 120 years ago. The temple has been quite since the disappearance of the vile clan. Recently, a religious order of holy priests has been interested in claiming the temple as their own. They are looking for bold adventurers to slay sinister monsters, evade treacherous traps, and bring glory to the forgotten Temple of Mercy!
Temple of Mercy is designed for six, third level characters using the B/X game rules. This adventure will advance the characters to fourth level by the conclusion.