This story, the twelfth in the Wallace Boys series, starts with a horrifying terrorist massacre of tourists at Queen Hatshepsut's Temple, one of the most spectacular archaeological sites near Luxor in Egypt – something like this actually happened a number of years ago.Nigel is caught up in the massacre but has obviously escaped death. He is missing. Bruce and a new-found friend, a Saudi prince by the name of Hanafi, are then involved in a desperate rescue bid on camels across the deserts of northern Saudi Arabia to save Nigel.