“Oh, come now, Dashwood, hang it all,” he protested, “we’ll have to do what the Inspector wants. If this Whitman is a murderer we’re pretty well bound to. Besides, Mr. French doesn’t want us to make any move, only to sit tight and not spoil his plans. What do you say, now?”

Mr. Dashwood made a gesture as if washing his hands of the whole affair, and announced stiffly that if his partner considered such action in accordance with the traditional relations between stockbroker and client he would not press his own views. Mr. Munce thereupon smiled genially at French and assured him that he could count on his wishes being carried out.

This was all right so far as it went, and it paved the way for French’s next proceeding. Going to the nearest telegraph office, he saw the postmaster, showed him his credentials, and explained that he wished to send a reply prepaid telegram, the answer to which was not to be delivered at its address, but was to be sent to him at Scotland Yard. Then drawing a form towards him he wrote:—

“To Whitman, care of Macdonald, 18 Moray Street, Pentland Avenue, Edinburgh.

“Serious fall in Brazilian stocks impending. Advise modification of plans. Would like an interview. Munce travels to Aberdeen by 10.0 a.m. from King’s Cross, Tuesday. Could you see him at Waverley where train waits from 6.15 to 6.33?

“Dashwood & Munce.”

This, French thought, should draw Roper. Unless the man was extraordinarily well up in Brazilian politics, of which the chances were negligible, he would suspect nothing amiss. And if he did not suspect a trap he would almost certainly turn up. Not only would he really be anxious about his money, but he would see that it would be suspicious not to show such anxiety.

All the same French believed that the telegram should be confirmed by a letter. In the ordinary course of business such a letter would necessarily follow, and Roper might notice the omission.

To ascertain the form of Messrs. Dashwood and Munce’s correspondence French adopted a simple expedient. He wrote confidentially to the firm saying he had just learnt that the man in whom he was interested had particularly small ears, and asking whether Mr. Dashwood had noticed Whitman’s. This letter he sent by hand and in an hour back came an answer. It took a comparatively short time to print a similar letter form, and on this French typed the following with the same coloured ribbon and spacing:—

“Dear Sir,—Confirming wire sent you to-day. We beg to state that we have just had confidential advices from our agents in Brazil, warning us that unsettled conditions are imminent which are likely to depress Government securities considerably. Under these circumstances we feel that we would like to discuss the question of your investments, as we think you would be wiser to modify your original proposals. In such matters a personal interview is more satisfactory than correspondence, and as Mr. Munce happens to be passing through Edinburgh next Tuesday, we thought perhaps it might be convenient to you to see him at the station. The train waits long enough to enable him to explain the situation fully.

Yours faithfully,”

French copied the “Dashwood and Munce” signature and despatched the letter by the evening mail. He was in hopes that it would allay any suspicion the telegram might have raised in Roper’s mind, while at the same time involving no reply to the stockbrokers other than that of the prepaid wire which would be delivered at the Yard.

The next point to be considered was the matter of Roper’s identification. French did not believe he could manage this himself. He had never seen the man. He had, of course, a copy of the photograph on the passport, but he did not consider this sufficient. In a matter of such importance he dared not leave a loop-hole for mistake. He felt he must have some one who knew Roper there to assist him.