Back to the entree. The lions will attack you, so kill them and look at the niches. In one of them is small first-aid kit, pick it up. Back to the lever - it is again in the same position as earlier.
Move it down again and run to the entry. On the left side, near the first statue is small stone block. Jump to it and then leap to the statue near it. After that jump on the centre statue, then on the opposite statue and on the last on the same side. You must do it fast before the statues will back on the former places.
Find the band in the wall above you, jump, throw the line to grab the band and run through the wall to the ledge on the opposite wall. Move down on the lower edge, go to the right, jump to grab the bar with the scarab. Jump to grab the ledge above the entree.
Move to the right and jump to the next ledge. Move behind the bend, climb on the floor and follow the tunnel.
Slide down on the bed of the rift. Kill rats and explore the rift. Pick up small first-aid kit. Near the chute is stone carved block - push it on the other side of the rift. Jump to the block and from it jump to the flooring. Go to the right.
There will be another rift. Slide down on the bed and take shotgun ammo. Back to the place, from where you were sliding down. Jump to the ledge on the right wall and then on the upper one. Jump to grab the bar, then leap to the crossbar.
Swing and jump to the scarab. Quickly jump to grab the edge of the flooring. Climb on the flooring and go forward.
There will be a courtyard with statue of green idol. Look around. In the niche under you is hidden an enormous crocodile. Overhang from the edge and move along the wall. The crocodile will leave the niche. Climb up on the level of the corridor and kill the crocodile.
Move down on the courtyard and go inside the niche. Take small first-aid kit and back to the yard. Be careful, there is also second reptile. Kill him and go to the other side of the courtyard. Under the pillars is small cell in the wall. Jump there and take small first-aid kit and shotgun ammo.
Go to the pool, jump into the water and dive. On the bed is a vent - swim through it. You will find the lever - switch it and the bar in the underwater tunnel will open. Swim there quickly, because it will close after a while. Surface.
You're in the huge chamber. Dive again, in the corner you will find large first-aid kit. Surface and go to the landing stage. Face to the scarab and jump to it. Jump go grab the ledge.
Jump to the landing stage on the right and climb on it quickly. Run on the other side of the room and grab the ledge in the brickwork.