In this episode, the group makes use of their previous legwork, and plans on how best to infiltrate the castle.
I went looking for some temporary music to fill in the silence in the beginning.
The song is Legend, from SPCZ, off the album Foundation. Which you can find at http://freemusicarchive.org/
This is a map of the outer grounds, and Floors 1-4. The basement the group toured was basically a large central room with a few locked vaults surrounding it, so there’s no map needed for it really.