The Chocolate People - The Chocolate People Series, #1

When you're made of chocolate, you'd think life would be pretty darn sweet. Literally. But for young teenage Chips, his cocoa-based society is locked in an endless war with the Strawberry people. Curious about the pink and tangy land beyond the mountains, Chips ventures into enemy territory where he meets a Strawberry girl named Coco (who actually is pretty darn sweet). Soon, Chips realizes he's gone too far - and not just because he left home. He's made friends with the enemy. Now, to save his newfound friendship (and stop the enemy camp from turning him into a S'mores ingredient), Chips must find a way to end the war between their people.
There's only one way he knows how: travel to The Fountain of Know-it-All. Joined by Chips' brother and Coco's sister and close friend, they battle their way across an ocean filled with deadly creatures and deadlier pirates. But when their quest takes an unexpected turn for the worse, saving their friendship becomes saving each other - and discovering the real reason why their people are at war once and for all. Other books in The Chocolate People SeriesBook 1: The Chocolate PeopleBook 2: The Big Chocolate FactoryBook 3: The Chocolate World