Plumero mazes of the mysterious room behind the illusory wall. (Bloodborne)

Travel through the maze, I stumbled upon an interesting premise behind illusory wall! The video shows where was the illusory wall. In the moment where I twist the camera three times! the room is interesting because there is NOTHING that you can choose: either you chests, no items, nothing, but there is an altar with a stone head, and someone with three identical figurines girls, behind the altar inconspicuous gold cross! in this room a bunch of other statues that in other locations spit a dart, but then they are not active! everyone in this room destroy: amphorae, jugs, spitting statues - all but three statues of the girls of the cross and totem! I tried all the gestures that managed to get in front of this totem, but in vain! Information about this location in the Internet I never found! interesting to know Your opinion about this!!!