The Time Travelling Children (Harry potter)

A/N I don't own the characters they belong to J. K. Rowling
A/N I don't own the fanart
All the children are together and go snooping for the time turner, when they drop it it sends them to the past where their parents are as their younger selves. After the second war, the older students go back to finish their last year at Hogwarts, when something unexpected happens.
A/N My first story sorry if it is crap