It's quite detailed, here's an excerpt from the walkthrough which might help you:
Look in your inventory at the First Tapestry:
1. Mermaid - Once the gift of life has been taken for granted
2. Minotaur - Even the heart of the strongest one end up wounded
3. Manticor - The mind then becomes poisoned by grief and pain
4. Griffin- Until feathery soft memories let only happiness remains
Now use your "save and quit" function IF you want to be able to restart the puzzle from this beginning point by coming back in and using the "Continue" menu option.
Back at the telescope, look at the grid on the left. There are eight series of four numbers. These four sets of coordinates must be entered using the numbered disks on the wheel and the gold ball. The numbers are derived from the Watchtower Puzzle you solved earlier.
- The inner most circle moves the numbers from left to right
- The next circle rotates numbers counter clockwise
- The third circle moves numbers from top to bottom
- The last circle rotates the numbers clockwise
- The gold ball determines which set/row of numbers (coordinates) you've selected for entry to the telescope.
- The numbers must be lined up on the wheel, but the order of the four numbers does not matter
Needed number coordinates:
Mermaid: 86, 59, 73, 68 .... 73, the belly button, is the hot spot
Minotaur: 11, 47, 32, 95 .... 47, the biceps are the hot spot
Manticor: 62, 33, 46, 25 ... 33, the thorn is the hot spot
Griffin: 87, 25, 68, 95 .... 87, the wing tip is the hot spot