Ok, so, in the first room I put on all the equipment from the chests, touched the stone, and was teleported into another small room with a couple of bookshelves with which I can't interact. But there seems to be nothing to do here! What now??
You must touch the stones while wearing only one of the items. Continue to do this until you get to the room with the chalice. In that room touch the stone while wearing none of the items. I can't remember in which order to the do the items/stone thing. Expirement.