Continuing their whistling, Wyll Wyldclay made their way down through the levels of the house, deeper than most had a reason to go. This was deep down in the bowels, the very functional bits and bobs. Both the physical -- the wiring, structural supports, the plumbing -- and the more...esoteric aspects of the house's functionality were down here. Lines of runes and wards in languages obscure and forgotten, foul-smelling substances of dubious origin -- whatever the Society needed to protect itself was put into place here.
With nimbleness granted by experience, the Wyldclay weaved their way around the wards, careful to not disturb anything, as they walked their way down, down, down.