Simplify the following text for a Grade 6 native English-speaking person.
Original: The Lightning Thief was accepted by Bantam Books in 1997 and later sold in an auction to Miramax Books before being released on July 28 , 2005 .
Simplified: The Lightning Thief was first bought by Bantam Books in 1997 , then sold to Miramax Books . They published it on July 28 , 2005 .