Hodder, 1995, illus Linda Boddy
Polly is still riding Moon Dancer, and the book opens with her losing a competition to Jessica Pemberton when Moon Dancer stumbles. It is more than just a simple stumble, and Moon Dancer is diagnosed with tendon damage. Polly is distraught. A new loan pony, Charlie, arrives at the Stables, but just after it is announced Moon Dancer needs to go away for an operation, Charlie’s owner takes him back. Miss T then buys neglected palomino Moly at auction. Eventually Polly takes to the pony and they do well together.
The Pony Club series
Pony on Loan
A Rider’s Year