Go to the nearest fountain and run a pail. Come back to the main hall.
In the main hall find a fancy plate in the floor. When you are standing on it, a safe - deposit behind the fireplace is opening, but unfortunately, when you are peeling, the safe - deposit is closing. Go near to the boxes, find a box with red label, push it on the plate.
Go to the fireplace and stub out the fire by using the water from the pail. Then take from the safe - deposit a figured arrow.
Come back to the boxes, jump to the boxes on the right, climb on the top. Jump to the huge painting on the center of the wall, then leap to the boxes on the left side.
From the last box take a gear of sculpture.
Go through the door on the left side of fireplace. Behind the next door is a huge chamber, which is in redecoration. Go to the red skip and push it on the center of room, between two scaffoldings.
Find another scaffolding on the center of the chamber. Shoot at the block hitch - the landings will level.
Pass the scaffolding and go to the right, climb on the dark green boxes. Turn round in the direction of the center of the room, jump to the crossbar above you and then leap to the edge of the balcony. Walk round and jump to the edge of the scaffolding.
Go behind the bend, jump to the right on the platform of scaffolding. Go to the left, leap to the spear (the statue of warrior). Grab the band of the spear and move down. Now the spear is in the horizontal position.
Run again in the direction of green boxes and go through the balcony again to the parietal scaffolding. Turn round, jump to the spear and go to the mezzanine.
Push the red container with pipes near the symbol of "x" on the floor. Put the receptacle on the round plate on the right side of the "x" and then move it round in this way that the longest pipe will be oriented along the "x". Go to the swivel statue on the left and move it round (the spear of warrior must be also oriented along the "x").
After that between container and statue on the wall will appear button. Shoot at it - one of the barrier, which is blocking the underground passage will unlock. Go on the end of the mezzanine, take large medipack and shoot at the knot of the line, which is chaining the large statue. The statue will reel, but not fall down because the two another lines are chaining it.