Mr. Jewett smiled, "Miss Vandergrift, as you say, you are not exactly a successful detective, and yet, in both of the cases on which you have been engaged you have accomplished what might be called indirect success. For, even though you did help him to escape, you discovered the thief of the rare old book, and you have been instrumental in restoring a lost girl to her mother. Now, I have another case and one quite different for you. Do you wish to take it?"