The Amber Cat

It's December, and Robin, his friend Dan, and Sun Dance are laid low with chicken-pox. To keep them amused, Robin's mother entertains them with memories of the summer when she was eleven and Nick and Charley stayed at her house. When they met Harriet, a strange, shabbily dressed girl who seemed full of surprises and magic, but remained a mystery, until Sun Dance solves the riddle with a small amber cat ...