Johnny Boo (2008), Book 9

Johnny Boo is wearing a crown on his head, so that means he's the King! Squiggle wants to be king too, so he puts a rock on his head. After a brief argument, they decide to share their new flying castle and fly to the moon. Or are they just pretending? After a madcap encounter with the Ice Cream Monster, they finally get too sleepy to stay awake... making this silly story excellent for bedtime.