On and on the riders travelled, through the exhilarating autumn air, until they stopped for lunch on the borders of a forest which Jack Frost had set ablaze, and which glowed in the sunshine with a dazzling splendour of crimson and bronze and gold. The hours flew by, and when they started homewards the sun was sinking in majestic glory, while on the opposite horizon the moon rose, silver clear. Pauline's every nerve quivered with delight. It was a perfect ending to a perfect day.