The Book of Caverns appears to have originated in the Ramesside Period (the Twentieth Dynasty) . Seemingly , this book , as an underworld book , emphasizes that previous texts had been too soft on those deceased who failed their judgment in the afterlife , while at the same time focusing on the rewards of those who did . Like many funerary texts , it was written on the inside of the tomb for reference by the deceased . It describes the journey of the sun god
through the six caverns of the underworld . Virtually , this book advances the knowledge of the Ancient Egyptian concept of Hell . It is divided into two halves , six sections , and each half is divided into three other parts .