Date, July 7. Hum! Man's thumb-mark on corner—probably postman. Best quality paper. Envelopes at sixpence a packet. Particular man in his stationery. No address. "Be at the third pillar from the left outside the Lyceum Theatre to-night at seven o'clock. If you are distrustful bring two friends. You are a wronged woman, and shall have justice. Do not bring police. If you do, all will be in vain. Your unknown friend." Well, really, this is a very pretty little mystery! What do you intend to do, Miss Morstan?'
'That is exactly what I want to ask you.'
'Then we shall most certainly go—you and I and—yes, why Dr. Watson is the very man. Your correspondent says two friends. He and I have worked together before.'
'But would he come?' she asked, with something appealing in her voice and expression.
