The Red Prince by Charlie Roscoe
When the young Prince of Zembla is imprisoned by rebels, he needs all the help he can get to escape. As he flees his prison dressed in his red pyjamas, his captives are hot on his heels. But soon he realises he is not alone. The whole land of Zembla has joined forces to help him, each person dressing in red to confound and confuse his enemies. An exciting tale of adventure and escape from the illustrator of The Wall.