From the author of Stick Dog comes the third book in a highly illustrated early chapter book series about three best friends whose plans, missions, and schemes are sure to shake up their school.

Molly, Simon, and Rosie are determined to build the best science fair project in school history. To do that, they'll need to attract tons of fireflies.

Will their bright idea get them a glowing grade or will it flicker out before the fair even starts?

HarperChapters build confident readers one chapter at a time! With short, fast-paced books, art on every page, and milestone markers at the end of every chapter, they're the perfect next step for fans of I Can Read!