Star of Wild Horse Canyon

"Star! Where are you, Star?" Danny calls to his horse, but Star does not answer - and Star does not come back to the ranch.
"He's gone back to the wild horses," says Mr. Wicker. But Danny knows that Star is not wild any more, for Danny is the one who has tamed him.
But where can Star be? There is something very funny going on around here, Danny thinks. And Danny is right!