Tura was Egypt's primary quarry for limestone, and was used on the Great Pyramid of Khufu. The mining of this limestone left behind caverns that were later used by the British Army as a secret depot during World War II, and which you can now explore.
To the left of the bottom of the long shaft, there are two hidden pits. Free the mummy to the right of the long shaft to fill one of them and free the mummy in the large chamber to fill the other. Be sure to ride the first of the two mummies down to get the piece of treasure in the nook near the bottom of the shaft. When leaving this nook, dig to your right several times to open up your escape route.
Get all the treasure on the left of the board, then move to the right. Make sure to dig free the mummy at the top so that you can get its treasure later. You will also need its help to escape back to the left at the end of the level. The treasure on the right is easier to get than it looks: strategically placed false bricks make this the easy half of the level. Note: If you feel like some variety, you can do all of the right first and then the left.