Cool Down

As summer ends, a new poolside friendship is formed—one that could lead to trouble—in this addition to a tween series that puts drama in the deep end.

Labor Day is just around the corner. Swim team is over, and many of the Riverside Swim Club regulars have gone away for the last days of summer. And some kids are returning from their summer vacations—kids like Nikki Angelo. Nikki is just the kind of...