Readers must rub, turn and tap the pages to straighten out pipes, unplug corks and keep the colour flowing. The colour is blocked! Readers must rub, turn and tap the pages to straighten out pipes, unplug corks and keep the color flowing. But watch out - the colour might run faster than you can keep up! Along the way, readers will learn primary colours, how mixing colours can make secondary colours, and why you should never, ever, put a turtle in charge.
