Cats a rats

At some point in the live play, the Duskwardens visited a location for Wrath to clear out a temple(?) for Bruce. Can anyone tell me where that location was? The only detail I recall is stories about cats and rats. It's driving me nuts, it popped into my mind while drifting off to sleep a couple of days ago and evidently it won't leave until I work it out. I don't have the time to rewatch the entire season, and google is being unhelpful (shocking, I know!) Thanks in advance to anyone who can release this brainworm.