The White Pony
by Amy
It's about a girl that goes to live with her Uncle and her cousin in their farm (the cousin is a brat and has 5 ponies) so she could maybe buy her one pony.
She meets a leprechaun who says that she could have her own pony if she helps him win the jumping and cross country competition so the pony could get back to another land (the pony's actually a fairy.)