Here is the step-by-step walkthrough from the strategy guide - IT IS VERY DETAILED AND IS DEFINITELY A SPOILER!!!
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
1. Start at the large cobra statue, stay to one side or the other and click forward until you bend around, coming to an opening with light shining through. 2. Turn into that opening. You should be looking at an Anubis (dog god) shrine torch. Click one to approach the Anubin and turn right. Click to follow the inner path. 3. Continue clicking forward, following the path unfil the next Anubis torch entrance. Click to approach the Anubis and turn right again. 4. Again, follow the inner path. Continue forward, following the winding path, until you come to the Horus (hawk god) shrine torch. 5. Click once to approach the Horus and follow the path to your right. Continue forward until you see a double Anubis torch, one recessed in the distance. Click forward and stay to your right. You will approach a single Anubis torch. 6. Click to the right and in the distance you will see a Tauret (hippo god) shrine torch. Click to approach the Tauret and the view will change to the left and an Anubis torch in the distance. 7. Continue toward the Anubis which will show you a path to the left; follow this path. 8. Continue clicking forward and you will arrive at two doorways. 9. Turn left into the Sacred Pool.
Hope this does it for you!
:-)