New Andersen paperback edition of this memorable story of two fighting monsters.

Two monsters live on either side of a mountain. Sometimes they talk through the hole in the mountain, but they never see each other.

One evening, they get into a silly argument about whether day is departing or night is arriving, which escalates into a rock throwing fight, which eventually destroys the mountain, and enables the monsters to see each other's point of view and live together as friends.

• New large format.
• David McKee is one of the best known illustrators of picture books, having created acknowledged modern classics such as Not Now, Bernard, Elmer the Patchwork Elephant, and Mr Benn, Gladiator. 
• Life sales for David McKee titles are now over 2.5 million copies.