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Do you mean Dark Passage? And where exactly are you stuck? Here's a walkthrough of DP, starting somewhere in the middle:
A mysterious figure – Njam the Meddler – will appear and disappear in a colorful fire: don't worry about it. You'll meet him later. Kill the lone sand horror and get to the puzzle. To open seven doors (behind six of them are six monster terrors and four chests, the seventh is the exit), you need to direct a beam from a crystal on a sand dune through four mirrors to a crystal at the exit. To do this, rotate the mirrors. The angle of rotation is discrete; each mirror has 36 possible positions. Remember – the angle of incidence is equal to the angle of reflection. First, adjust the first mirror on the hill opposite the crystal so that the beam falls on the second, standing opposite. At the same time, you should see three beams. Do the same with the second and third. The last mirror is behind a sand dune and cannot be seen. But with the correct setting of the third mirror, you should see the beam coming from the fourth reflector (and not just sparks). When the beam falls on the second crystal, the doors will rise. Kill the creatures, take the items, and go through the last door.
Two more monsters and a pair of doors await you, with a sign between them urging you to choose the right path. In fact, both doors lead to the same place – to the next crystal. Go. You will be attacked by spectral spirits. They are somewhere on another level and cannot be seen. Touch the crystal, kill the available specter, and enter the room with the next puzzle.
On the floor are four tiles with a different number of stripes. On the wall in front is an image of the same stripes. There is a handle below – pull it. Walk across the tiles in the indicated order. When you step on the tile with four stripes, it will rise, and a lift will roll out towards you – step onto it. Go into the corridor, deflect the attack of the specters, and go towards the light in the distance: there you will be met by an old woman named Igrid. She is ready to give you the desired Writ of Fate, but, as usual, in exchange for a service.
Her task is as follows. Once, the Capstone of Order stone fell from the sky and landed in Guibberland. You need to find it and deliver it to the Isle of Dust, where it should be placed on a pedestal in the laboratory in the ruins of the Ferhoven tower. After the conversation, touch the blue sphere on the wall, and it will transport you to the Guibberland pier.
(c) LKI