Talk:Ruin Sentinels/@comment-3359262-20140422002859

So there are a few illusionary walls around the room (the ones that you have to open, as opposed to break), and they open up a few passages or small rooms. They can be opened during the fight, as I just tested them, so perhaps they can be used to get a quick rest, and potentially snipe from.

There are three along the ground floor wall, opposite the damaged door/entry fog side. They are in the second (contains a chest with the target shield), fifth (empty, it seems) and sixth (contains a corpse with a rusted coin) sections (from the left) of that side. The fourth on ground level is on the wall that is on your left as you enter, in the fourth section (from the left), and behind it is a ladder that leads to a chest containing Hush and another hidden door which will take you to the upper level of the boss room.