Poppy, KC and Sam always find themselves in the middle of mysteries that need to be solved. When a mysterious figure throws a beautiful necklace into the sea and runs away, the three are curious. Who is the stranger? Why did they run? And - why don't they want the necklace?

Poppy, KC and Sam investigate stragne goings on at a school disco

Poppy, KC and Sam always find themselves in the middle of mysteries that need to be solved. When they start taking early-morning swimming lessons at their local pool, they discover that someone is using the pool before it opens in the morning. How did they get in? Why are they hiding? And - who is it?

While on holiday at a pony centre, the three meet a beautiful pony, Dixie. But Dixie refuses to be ridden. Why does he lie down when anything is put on his back? What happened to him before he came to the pony centre? And - can they help make Dixie better?

Part of the Three Together series.