Looking at the locations on the Scenario Into the Runeforge in Sins of the Saviors, it looks like a location is missing from the location list. There are only 2 one-player locations, and not a full 8 for 6 players. There are 6 Warriors of Wrath henchmen, which would fill out the other 6 locations when you include the villain and the named henchman. And there are "seven deadly sins" at play through out the adventure, but in the last scenario, only 6 are used. It appears that they left Abjurant Halls of Envy out.
I took a look though the FAQ and the forums, but did not see anything mentioned. Should it be added in as the last location?
It is correct as is. See this thread for explanation.
As usual, thanks for a quick and correct answer. Reading through the whole thread also explained why my search never turned anything up. I searched using the name of the scenario, and it was not mentioned once in the entire thread,