It's the summer after sixth grade when a group of classmates turn up at the library at the same time. They know each other, but they're not friends. The truth is, they each spend a lot of time alone. Which is why it's so unexpected when Tilly, Jada, Eleanor, and Mateo create a cookie baking business together. It just kind of happens.

The problem is their plans keep falling apart. But each failure only makes them more determined to make something--anything--work. Because what they need more than anything is an escape from the loneliness and anxiety that comes with middle school. They want to be a part of something. And in the end, the one thing that goes right is their decision to count on each other.