Afterwards

His heart throbbing wildly, with an excitement quite foreign to his nature, Anstice watched the performance eagerly through the just-parted curtains; and so sure was he now of the identity of his quarry that he was ready to leap from his hiding-place and confront the anonymous letter-writer without further loss of time, had not a gentle pressure on his arm restrained him at the critical moment.

It was not safe to speak, since even a whisper might betray their presence; but Anstice realized Major Carstairs' intention and held himself in check, though he quivered like a greyhound straining at the leash, who fears his quarry may escape him if he be not slipped forthwith.

After what seemed like an hour, but was probably five minutes, the letter, whatever its nature, was judged complete; and with the same stealthy but unhurried movements the writer sought and obtained an envelope from the many which lay ready to hand and slipped the missive in with deft fingers. An address added, the abominable thing was complete; and having quietly put everything in order, so that even the most acute eyes could discover nothing amiss, the writer rose softly from the chair, and taking up the electric torch extinguished its beam preparatory to making her exit from the room, which was now in almost complete darkness.

This was the moment for which Major Carstairs had been waiting.

With a whispered word in Anstice's ear: "The light--quick!" he dashed aside the curtains and darted out into the room, while Anstice, hastily obeying orders, rushed to the wall and turned on the electric switch to such good purpose that the room sprang instantly into brilliant light.

There was a scream from the hooded figure in the middle of the floor--a scream of mingled anger, defiance and terror which rang in Anstice's ears for hours afterwards, and following the scream a mad, wild rush for the door--a blundering, stumbling rush in which the very garment, the long, loose cloak which was intended for a disguise, proved itself a handicap and effectually prevented its wearer making good her escape. By the time she had torn herself free of the encumbering folds which threatened to trip her up at every step Anstice had reached the door; and now he stood before it with something in his face which warned the panting creature in front of him that the way of escape was effectually barred.

Still hiding her face in the folds of her garment she turned round as though to rush towards the window and seek egress thereby; but facing her stood Major Carstairs, and the wretched culprit realized, too late, that she was trapped.