Simplify the following text for a Grade 5 native English-speaking person.
Original: The Song of Songs ( Hebrew , , Shir ha-Shirim ) , is a book of the Hebrew Bible -- one of the five megillot ( scrolls ) -- found in the last section of the Tanakh , known as the Ketuvim ( or `` writings '' ) .
Simplified: The Song of Songs is a book of the Hebrew Bible or Tanakh , and also in the Old Testament of the Christian Bible . It is one of the five megillot ( scrolls ) .