The wall looked like a wall, smelled like a wall and was as hard as any wall I've seen. If not for Desmond's words, I wouldn't have paid it more attention than to any other wall in this dusty room with a blown-up door. Heaps of boxes showed it was a storage unit once, but now it appeared to be forgotten. I was ready to bet it was intentional.
A random forgotten room in an enormous mansion. Who would suspect a secret door into a subspace?
Through my well, the room looked more interesting thanks to the many traces of the demon in it. They felt familiar, and a moment later I realised with surprise that I saw the demon's emotional trail. It was just like any other emotional trail, too. Anger and triumph blast right around the wall Desmond pointed at, then turned into a thinner cloud of eagerness and curiosity until dissipating entirely.