When Ellie puts on her new pyjamas, strange things start to happen. She and her little brother, Max, are whisked off to the Christmas Shop where a battle is raging between a valiant troop of toys and the scaaaarry Christmas Tree Fairy and her army of angels.
Can Ellie and Max save Christmas for the world – or will they be arrested for being mince spies?
This is the first book in a new series about the Cosmic Pyjamas. They're magical and they're dangerous. You have been warned!
Accept no substitutes
Strong's books are hugely popular with young children with their breezy, daft exuberance
Take a trip back in time to the eras of the Romans, the Tudors and the Ancient Egyptians in this list of must-have historical fiction books. But hold on tight, because this is not history as you learnt it in school.
We asked some of our brilliant authors (and dads): Nick Mohammed, Chris Bradford and Jeremy Strong about the importance of reading with their kids. From creating personal theme tunes to rediscovering Harry Potter, they spilled the beans.