The Sign of FourBook - 2008
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.
Publisher: Oxford : Oxford University Press, c2008.
Characteristics: iv, 76 p. :,col. ill. ;,21 cm.
Alternative Title: Sign of four.