"Your guess may be the correct one; let me know what it is?" "No, no, no!" "You won't speak?" "No. Not for worlds." It was plain that whatever she knew she would not reveal, so Fanks, shaking his head, left the room. When he was out of the door, Anne broke down, and, falling into a chair, she burst into tears. Yet she had no idea of yielding: for better or worse the die was cast, and if Hersham was arrested, at her door would lie the ruin and disgrace of his life. Truly, it was a powerful reason which made Anne conceal the truth at the expense of her lover's liberty, and--it might be--of his life. As for Fanks, he went off to the station, and caught the train to town. He had gone to Taxton-on-Thames full of hope of success; he left it beaten on every point--and by a woman. His sole chance of learning anything further lay in advertising for the negro; and in the chance that Hersham would confess next week. Anne Colmer was as silent as the Sphinx; all the same, Fanks had not done with that young lady. CHAPTER XX. THE GREEN OVERCOAT. It may be here mentioned that Fanks had no intention of arresting Hersham at the present time, he had threatened to do so in order to induce Anne to speak out; but this having failed, he thought no more about the matter. The journalist was being watched, and he could be arrested at any moment; so Fanks was quite at his ease on that score. The slightest false step, and Hersham would find himself within the walls of a jail; but up to the present time Fanks had not collected sufficient evidence against him to warrant any magistrate authorising his imprisonment. The confession of the next week might bring about the intervention of the law, but till then Fanks left Hersham under the eye of the watching detective, and devoted himself to searching for the mysterious negro who had worn the green coat with brass buttons. It may seem strange to the reader that so astute a man as Mr. Fanks should advertise for a negro, when he was confident that the only negro connected with the matter was in Bombay. But this apparent riddle will be explained when Mr. Fanks receives the expected answer to his paragraph in the "Morning Planet." This appeared two days after he left Taxton-on-Thames, and read as follows:-- "Ten pounds reward will be given to any person who can inform advertiser of the whereabouts of a black man dressed in a green coat with brass buttons. Twenty pounds will be given to anyone who can give information as to the movements of the said black man on the night of the twenty-first of June last, between the hours of six and nine. Apply Messrs. Vaud and Vaud, Lincoln's Inn Fields." It cannot be said that this advertisement was a masterpiece of composition, but the clumsy wording was due to Crate, and Crate not being a scholar had written it in such a fashion. Fanks commented on its prolixity to the author himself on the morning of its appearance.