Book excerpt: Jane loves ponies. Luckily her Grandma Aggie has two. SweetPea is old and gentle. Jane learns how to ride on her. Popcorn -- who was born on the same day as Jane -- is young and energetic. Popcorn loves to jump and go fast, and Jane wants nothing more than to ride a pony who'll jump and go fast. Popcorn and Jane are perfect for each other. Or are they? Both of them like to get their own way. And neither is prepared for what will happen when they start to ride together...