Plenty of surprises in store for the animals in this simple, vibrant picture book which is both a mystery and a guessing game. The animal friends are having fun together when the lights suddenly go off. But what's really happening in the dark? Luckily, it ends in a fantastic surprise and a birthday celebration. The short text, featuring lots of repetition and the reinforcement of opposites will engage young readers. Comparing and contrasting the detail in the brilliant illustrations will help readers try to predict what's going to happen next.