Thank you very much MaG and Steve,
I got that last crystal from under the ramp ( the barrier stopped me from going under the ramp before). Thanks a lot MaG for the pictures, now I know that I didn't get to the room with the white card yet, still need the key. MaG, you wrote
[QUOTE] Stabilize the vortex and the key will appear in another place; then you can pick it up.
I stabilized the vortex and the key was still on the same unreachable part of the wall. I returned through the portal back. Maybe I just should waite for the WT, it seems this game is too much for me.