Then, while still in the dark, I set myself like a prudent general to discover what the enemy was doing.  He was here in Aix in the persons of Lord Blackadder and his two devoted henchmen, Falfani and Tiler.  I had heard the appointment he had given them at the Hotel Hautecombe, and I cast about me to consider how I might gain some inkling of their intentions.  Luckily I had desired l’Echelle, the sleeping-car conductor, to stick to me on leaving the police office, and I put it to him whether or not he was willing to enter my service.

“I will take you on entirely,” I promised, “if you choose to leave your present employment.  You shall be my own man, my valet and personal attendant.  It is likely that I may wander about the Continent for some time, and it may suit you to come with me.”

He seemed pleased at the idea, and we quickly agreed as to terms.

“Now, l’Echelle,” I went on, “after last night I think I may trust you to do what I want, and I promise you I won’t forget it.  Find out what the other side is at, and contrive somehow to become acquainted with Lord Blackadder’s plans.”

“How far may I go?” he asked me plump.  “They are pretty sure to try and win me over, they’ve done so already.  Shall I accept their bid?  It would be the easiest way to know all you want.”

“It’s devilish underhand,” I protested.

“You’ll be paying them back in their own coin,” he returned. “A corsaire fieffe corsaire et demi. It will be to my advantage, and you won’t lose.”

“Upon my soul, I don’t quite like it.”  I still hung back, but his arguments seemed so plausible that they overcame my scruples, and I was not sorry for it in the long run.

[The reader has already been told how Falfani craftily approached l’Echelle, and found him, as he thought, an easy prey.  We know how the communication was kept up between the two camps, how Falfani was fooled into believing that he kept close watch over Colonel Annesley through l’Echelle, how the latter told his real master the true news of the progress made by Tiler.  When there could be little doubt that the chase was growing warm and had gone as far as Lyons, the Colonel felt that there was danger and that he must take more active steps to divert the pursuit and mislead the pursuers.  The Colonel shall continue in his own words.]

I was much disturbed when I learnt that Tiler had wired from Lyons.  I saw clearly what it meant.  The next message would disclose the whereabouts of the Lady Claire, at that time the only lady, as they thought, in the case, and the lady with the real child.  It would soon be impossible for me to make use of the second with the sham child to draw the pursuers after her.  In this it must be understood that, although I had no certainty of it, I took it for granted that the little Lord Aspdale was with his aunt and not with his mother, who, as I sincerely believed, had already reached Fuentellato.