Before you can enter the Sphinx, you need two items not found at Giza :
At Giza, wear the turban to get a shovel. On the handle is a phone number for the leader of the tomb raiders, Vince Graves. When you meet him, call him at the number on the shovel, which is 555-6789. When his men run off, and he looks for the phone, grab the Moonstone from his knapsack. When it is set in the ring atop the Sphinx, the door will open.
To enter the chamber at Giza, place the Moonstone from the knapsack in the setting atop the Sphinx.
The Moonstone will open the Sphinx. Climb to the top of the Sphinx and put the stone in the ring there.
you need to switch the power off and go in before time runs out -Belinda-
Vince is Vince Graves, fortune hunter and tomb robber. He is looting the tomb of the Sphinx at Giza on Nabooti Island. He has the Moonstone in his bag, and if you get it, you can open the Sphinx. (see related question)
The Moonstone is in the bag. Call Vince on his phone and grab it. You can use it to open the tomb in the Sphinx.
The ring is atop the Sphinx at Giza. Putting the Moonstone in the ring will open the tomb. (see related question)
If you can open the Store tab, get the Haunted House card, select it from Store Items, enter it and then leave. This kicks you out to the Island Map. When you go back to Nabooti Island, you have to fly back to Giza and to do the tomb puzzles over again. But this is better than being stuck forever.
The Blue Jewel is inside the tomb beneath the Sphinx at Giza. (see the related question)
There is apparently no gate to open. - At Giza, open the door to the tomb by placing the Moonstone in the ring on top of the Sphinx. - At the diamond mines, set the timer back, then run quickly left, then right to reach the hole in the wire before the power comes back on.
You need the cellphone from the ice cave at the Mountains of the Moon. You need a desert turban that you can get by picking the Blue Lily at Blue Nile falls and swapping it at Nabooti. If you wear your turban when you go to Giza, the tomb robbers will take you to see Vince Graves, their leader, and give you a shovel with his phone number on it. When you meet Vince, call his phone and he will go to look for it. His men, tired of not getting paid, run off. Take the Moonstone from his knapsack and use it in the ring on top of the Sphinx. This will open the door to the tomb.
The "moonstone" is in the knapsack that Vince has at Giza. Placing it in the ring atop the Sphinx will open the door to the tomb. To get the moonstone : # Go to the Mountains of the Moon and get the cellphone from the cave at the top.# Go to Blue Nile Falls and get the Egyptian Lily, and swap it for a turban at Nabooti.# Go to Giza and wear the turban to get a shovel. On the shovel there will be Vince's phone number (555-6789).# After you talk to Vince, call him to distract him from the knapsack.Next : Put the Moonstone into the ring atop the Sphinx, which will open the sealed door.
you go in
you call the guy in Giza with the phone and the number that is on the shovel. Then you go to his backpack and get the moonstone, and you use it on top of the weird building/statue and it will open.