Brit and Etho are the best of friends. Every day they take their cardboard boxes to the top of Sudden Hill and turn them into adventures. But when Shu comes along, their comfortable two-by-two relationship is changed and Brit finds it difficult to adjust. Eventually, with much persuasion from Etho and Shu, Brit learns that three-by-three can be even better. This heartwarming story explores the feelings of insecurity many of us feel when a new personality comes along, and shows children that it is okay for friendships to change over time. The story inks to the whole school value of ‘friendship’ and can be use with individuals or small groups of children experiencing friendship issues (e.g. when three children are finding it difficult to share each other) or for helping established friends to welcome new friends into their group.