Originally Posted by
Rain_
I think the most interesting theory I've come across so far is this......
1. Lily and Petunia are the decendents of the Slytherin bloodline. Tom Riddles mother, Merope, had a daughter, as well as a son...Petunia and Lily's mother. Harry is therefore Voldemorts great nephew...
2. Petunia when applying at Hogwarts was discovered to be the most powerful wizard in the entire wizarding community, therefore, she was sent away...she later reveals my next spoil..
3. Lily and James were experts in Horcruxes and were obsessed with killing Voldemort. When Voldemort tries to kill Harry in the first book, Lily actually turned Voldemort into a Horcrux and split Harry's soul. You can make a Horcrux not only with evil, but with love, as well.
4. In the last book Harry does die, but is able to come back because Voldemort is Harry's horcrux...