Afterwards, greatly agitated and full of dark apprehension, I got on, by telephone, to the Wagon-Lit office in Pall Mall, and reserved berths for us both on the Rome express from Paris as far as Pisa, where I knew we would be compelled to change. Then I addressed a long telegram to Mabel at the Hôtel Grande Bretagne, on the Lung’ Arno, at Florence, explaining that she was the victim of a bogus message, but that we were rejoining her at once, in order to bring her home.

I judged that she must already have arrived in Florence, but unfortunately there would be no time to receive a reply ere we left London.

Having despatched the message, I went round to the garage, and, telling Pelham of my sudden call abroad, gave him certain instructions, drew a cheque for wages, and otherwise left things in order.

Then I called upon Miss Kirk, but she denied all knowledge of her brother’s whereabouts. The Times, which I had just bought in the High Road, Chiswick, contained no advertised message from him. Nor did I expect any.

My intention now was one of bitter retaliation. I had been befooled by the man who I had proved held secret knowledge of the mode of the poor Professor’s tragic end. By this message to my wife someone had touched my honour, and I intended that he should dearly pay for it.

Gwen, girl-like, was all excitement at the prospect of this flying journey to the south. At one moment she endeavoured to reassure me that nothing was wrong, while at the next she expressed wonder at the motive of the mysterious message.

At last, however, we found ourselves seated in the corners of a first-class carriage, slowly crossing the Thames on the first stage of our dash to Italy. The outlook was grey and cheerless, precursory, indeed, of a dismal conclusion to our journey to the far-off land of sunshine. We got out at Folkestone Harbour, however, well to time, and that evening were fortunately only seven minutes late in arriving at the Gare du Nord. We had dined in the train, so, therefore, entering a taxi-cab, we were soon whirled across Paris to the Gare de Lyon, where we had only eight minutes to spare before the departure of the rapide for Rome.

All that night, as I lay alone in my sleeping-berth while the great express rocked and rolled on its way to the Alpine frontier, my mind was full of gravest apprehensions. Gwen had been given a berth with another lady at the further end of the car, and I had already seen that she was comfortable for the night. Then I had turned in to spend those long dreary hours in wakeful fear.

I could discern no motive for inveigling my wife—with whom Kirk had never spoken—to a destination abroad. Yet one curious point was quite plain. That mysterious dweller in Bath Road—the man with the pet parrot—was well aware of my absence in the north. Otherwise he would not have forged my name to a message sent from Turin.

For what reason could he desire Mabel’s presence in Florence? He must have some object in her absence. Perhaps he foresaw that her absence meant also my absence—and that my enforced journey meant a relaxation of the vigil I had established upon the man who had gone north on the night of the Professor’s assassination. That was the only feasible theory I could form, and I accepted it for want of any better. But in what a whirlwind of doubt and fear, of dark apprehensions and breathless anxiety I now existed you may well imagine.