In the 13th installment of the Star Friends series, Mia, Lexi, Sita, Violet, and new Star Friend Maddie suspect dark magic when they noticed that the adults in town are at first very energetic and spontaneous but then become reckless. Can the girls figure out what's going on?

The town of Westport is sponsoring a charity run, and everyone participates. But after the run, Mia, Lexi, Sita, Violet, and the newest Star Friend, Maddie, notice that many of the adults in town are at first very energetic and spontaneous but then gradually become reckless. Maddie observes that her mom hasn't been affected, and she wonders why. And as the adults' actions intensify, the girls suspect dark magic. Where is it coming from? With black-and-white illustrations throughout.

In the Star Friends chapter book series, Mia and her friends Lexi, Sita, and Violet all discover that they are Star Friends -- they can communicate with the animals that have traveled from the Star World. The animals show the girls how to use their unique magic abilities to do good. A whole world of magical adventures awaits!