When Heidi the Hen bakes a tasty birthday cake to enjoy, she's in for a BIG surprise! Suddenly, the cake jumps down from the table, races out of the door and disappears down the street. Heidi is hot on the tail of her tasty treat but will she be able to catch it? Join a whole host of colourful characters as they rush after the mischievous runaway cake in this pacy, colourful picture book chase.