It's the first day of school, and Violet can't wait to see all of her friends. But after a mysterious blob of paint appears on the school building, Violet and her best friend Wally get to work looking for clues. Soon, the sleuths find themselves not only solving a mystery, but helping out the last person in Aquamarina they'd expect . . .

After the adventure, readers can turn to the back of the book to find STEAM facts about famous artists who incorporated nature, math, and science into their works!