Penguin, New Zealand, 2010, 156 pp.
The girls are going to compete at the National Grand Champion Show. An unexpected winner takes out the Supreme Champion Show Horse award. When they get back to White Cloud Station they go on a mystery ride, which becomes even more of a mystery when they take a wrong turn. They have an overnight stay at a haunted house where Suzy finds out something about the secret herd of horses.
White Cloud Station series
Ripple and the Wild Horses of White Cloud Station
Summer with Horses
Riding High at White Cloud Station
Autumn with Horses
Wild Horse Country