Peter McKay - Solomon's Resource
Adam, it is interesting that you found walls while discerning witchcraft. Recently during a ministry session, Paul had me go a distance away from the client we were working with and begin breaking the rings as I walked back towards the ministry room (the standard way we deal with this kind of stuff).
About half way to the person, I hit a wall that seemed like stainless steel, quite high, and completely impenetrable. In fact, it turned out that this wall was part of a 'fortress' that was 'stronghold' for forces of darkness and the curses they were part of and protecting.
After some prayer, we were led by the Spirit to ask the LORD to release the Fire of Heaven upon the fortress (the client was in agreement to do this). The fire fell and what had previously been a 'fortress' protecting evil; became a furnace of the Father's burning love. Eventually the fire became so hot that not only was the evil consumed, but the very walls melted away.
We are seeing this theme repeatedly now, where the LORD takes what the enemy has labored to construct and turns it 'on its ear' making something beautiful out of the ugliness of what darkness has done.