For six years, Mary Morstan has received a magnificent pearl by post every year, without knowing who sends it. Her father disappeared ten years ago. When a letter invites her to a meeting, she asks Sherlock Holmes and Dr Watson to go with her.
A treasure from India, a room locked from the inside, a man with a wooden leg, a chase on the Thames: this second case for Holmes is one of the most thrilling, and it is also the one in which Watson falls in love.
Fast-paced, this short novel is easy to read in the language you are learning.
