Sarcophagus of Unas
The sarcophagus of Unas. The three walls surrounding the sarcophagus are the only area inside the pyramid that is not inscribed with texts (barring the first section of the entrance passage). Instead, the false door motif or palace facade surrounds the sarcophagus.
Above the sarcophagus on the gabled western wall, however, are some rather enigmatic spells designed to protect the body of Unas below them.
"The fire has been extinguished, no lamp can be found in the house where the Ombite is.
The biting snake is all over the house of the one he would bite, hiding in it. "
The Ancient Egyptian Pyramid Texts (Writings from the Ancient World) - James P. Allen