While sixth-grade superheroes Scarlet, Iris, and Cheri are trying to decide if the formerly evil Opal can be trusted to be an Ultra Violet again, they face a ne

A smart superhero book for girls with plenty of glitter—perfect for fans of The Powerpuff Girls It all started with the mysterious purple goo . . . What happe

A smart superhero book for girls with plenty of glitter--perfect for fans of The Powerpuff Girls. It all started with the mysterious purple goo . . . What happe

What happens when four best friends find themselves splattered with a purple, bubbling, genetically altering substance during a seemingly innocent sleepover in

This book provides a comprehensive overview of the state-of-the-art in group III-nitride based ultraviolet LED and laser technologies, covering different substr