Pfortenbuch
The majority of the royal tombs were decorated with religious texts and images. The early tombs were decorated with scenes from Amduat ('That Which is in the Underworld'), which describes the journey of the sun god through the twelve hours of the night. From the time of Horemheb, tombs were decorated with the Book of Gates, which shows the sun god passing through the twelve gates that divide the nighttime and ensures the tomb owner's own safe passage through the night. These earliest tombs were generally sparsely decorated, and those of a non-royal nature were totally undecorated.