?Guaranteed free of unicorns and princesses, it?s fun, empowering fiction for 5-8 year olds.? David Nicholls, author of One Day ?Every young girl should read this series!? Amanda Holden ?I loved learning about how the ocean is in trouble.? Tess, age 6 Join best friends Katy, Cassie and Zia on a series of amazing adventures as they work together to save the planet? On the hottest day of the year, the friends imagine a water slide coming out of Katy?s...