Fallout 3 locations project
The hideout can be accessed by climbing the set of stairs in the southwest corner of the Steelyard after you've reached the appropriate stage in Free Labor. It's an abandoned room used by Wernher as a refuge from the Pitt raiders, consisting of two floors; the first floor (which has nothing of interest) and the second floor, where Wernher sleeps and has a small lab set up.
- Marie can be found here during Free Labor should you choose to side with Wernher.
- The power plant key can be found on a desk in the hideout.