A young woman, Helen Stoner, lives alone with her stepfather in a big, old house.

Two years ago her sister died suddenly one night after screaming in a terrified voice: "The speckled band!" The sister appeared to have died of fright.

Now Helen hears strange sounds in the night. She is very frightened. Is she going to die like her sister?

She comes to Sherlock Holmes for help. Это и многое другое вы найдете в книге The Speckled Band (Sir Arthur Conan Doyle)