Come up to the abyss, left from the fountain. Stand near the wall on the right and run over it horizontally. When you are almost falling down, reach the relief stuck in the wall with your knife. Bounce off to the left, run a little bit horizontally over the wall landing on the ledge in the quadrangular pillar. Move over it to the left behind the bend of the wall. Take off to the left wall and then to the right and again to the left and so on until you will catch the ledge in the top part of the pillar. Climb it.
Move over the ledge to the left behind the pillar bend, stand straight ahead to the relief. Jump to the lower bas-relief driving the knife into it. Jump then to the higher relief take off upwards reaching the brink of the floor. Clamber the floor. Move to the exit on the left to the adjacent corridor, stand close to the abyss. Climb the catwalk then jump straight ahead to the cross-bar hung between walls. Move over on hands to its right side, swing yourself and jump to the horizontal bar in front of you. Stand on it, move to the right as far as you can, and then jump straight ahead to the wall direction.
Catch the ledge and climb it. Move over to the left carefully but watch out - the part of the stone section is hiding itself in the wall and pulling out again after a while. Feel the moment when you may steal by. Behind the bend there is another section of the ledge hiding itself in the wall, exercise caution.
After moving behind the bend take off upwards to the next ledge. Enter it and immediately (this copy is moving also) jump upwards reaching highest, luckily stable ledge. Move over it to the right and behind the bend take off to the top catching rail of the floor. Clamber on the floor, enter the next chamber.
Go to the wall straight ahead to the entrance. You will see the moving ledge above the head. Sense the moment when it is slipping out of the wall and run vertically on the wall catching it. Clamber up it with lightening speed and bounce off backwards to the horizontal bar, sticking out from the column on the left. Swing yourself on the horizontal bar, and then jump straight ahead, you will reach the cross-bar hung between two columns. Stand on it, jump straight ahead to the balcony. Jump over the rail, run over the corridor to the right.
Go up the stairs, turn to the left and move to the courtyard. There is a novelty in front of you - two alternative fountains. Choose any, drink water.