Drew Pendous and the Camp Color War  (English, Paperback, Lewman David)

It's Camp Cool School vs. Camp Cruel School in the Colour War. Let the games begin! Even though Cruel School students love to cheat, it looks like Team Cool will rule the day - until Grace Cale arrives and is determined to suck all the colours out of the world. Can Drew use teamwork - and his drawing skills - to stop her evil plot?