The author of the beloved Kids of the Polk Street School series introduces a new generation of readers to a multicultural group of kids who enjoy all the activities of an after-school center. I'M #1! That's what Mitchell McCabe's favorite T-shirt says. He'd like to be Number One at the Zigzag Afternoon Center, where there are lots of fun activities to choose from: swimming, nature walks, field trips, art, even homework help. And YAY — there's snack time! But Mitchell is worried. What if he's the only kid who doesn't get a prize on Prize Day? Luckily, Mitchell realizes he's a winner at something terrific. In this delightful new series, award-winning author Patricia Reilly Giff introduces readers to a quirky, lovable group of kids, capturing all the excitement and surprises of new friends and after-school fun.