Riding school de Zonnehoeve - The super pony

The Super Pony is already the tenth book in the series about the Zonnehoeve Riding School! Each book tells the story from the perspective of a different pony. This time it's about Odin, a pony who is much too fat. His owner, Anna, doesn't have much time for Odin anymore, so he's temporarily staying with Carolien at the Zonnehoeve. Odin really has no interest in becoming a riding school pony, because he has to lose weight there. And he misses Anna. Only when he's allowed to ride outside with Rowan does he really start to enjoy himself. He's also new to the riding school, and they quickly become friends. But Anna wants to sell Odin. Will Rowan and Odin manage to stay at the Zonnehoeve after all?