Miss Mary Morstan has a strange story to tell.
Since her father disappeared, she has received a large pearl through the post on the same day, every year, for six years. Who is sending them? And what about her father's paper with the words 'The Sign of Four' written on it?
Sherlock Holmes alone can solve these mysteries.
Dominoes is a full-colour, interactive readers series that offers students a fun reading experience while building their language skills. With integrated activities, an interactive MultiROM, and exciting, fully dramatized audio for every story, the new edition of the series makes reading motivating for students while making it easy for you to develop their reading and language skills.