It Was Just A Dream (HP fanfic)

Willow, Fern, Evelyn and Esadora are the best of friends. So when they find trinkets with a lion, a eagle, a badger and a snake (some of their favourite animals) on them in an antique shop, of course their going to buy them.
But little did they know that it would lead to them waking up in Hogwarts, barley remembering their previous lives or each other.
Only thinking that it was just a dream.