It was the first week of the summer term at Winterburn Lodge. Afternoon preparation was over, and most of the girls had left the classroom for a chat and a stroll round the playground until the tea-bell should ring. From the tennis court came the sounds of the soft thud of balls and a few excited voices recording the score; while through the open windows of the house floated the strains of three pianos, on which three separate pieces were being practised in three different keys, the mingled result forming a particularly inharmonious jangle.