Hi there Urabeth.........Following is short excerpt from Tally Ho's walkthrough...all but the solution. I think the instructions will reveal what you need to do, but let us know if you need more.
Just go to the side of the wall that has the pictograph of the star, pointy thing in the middle, and waves on the bottom.
WARNING POSSIBLE SPOILER:
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.Our First Clue!
Looking to the right, we see this pictogram on the wall. As an experienced Egyptologist, you immediately recognize the bottom one. The symbols are familiar. But what is that set of symbols in the top group? The wavy lines at the bottom may mean water, the star is, well, a star, but a pentagraphic star is not commonly found in Egypt. And whatever is that pointy thing in the middle? Let's turn around and go to the opposite wall. Here is a star with the Eye of Horus in the center. Touch one of the side-arms of the star, and the eye rotates. Now does that top pictogram give you any ideas? It would seem to represent our star puzzle, and instructions how to manipulate it.
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Love, Witchen =O)