Simplify the following text for a Grade 7 native English-speaking person.
Original: On his death , he was buried in a tomb in the Valley of the Kings ; his body was later moved to a royal cache where it was discovered in 1881 , and is now on display in the Cairo Museum .
Simplified: On his death , he was buried in a tomb in the Valley of the Kings ; his body was later moved to a royal cache ( hidden wall slot ) where it was discovered in 1881 . It is now on display in the Cairo Museum .