He held it in his fingers with a puzzled look for a moment; it seemed as though one letter had suddenly become two. Then he understood and smiled a little sadly at his own weakness of comprehension, and broke the seal.

The effect was not instantaneous. He read it over again, and a third time, his face still vacant, and he put his hand to his head trying and striving with all his might to remember. The week of insanity had done its work and Diana need not have feared that he could be easily recalled to an understanding of the past. But it was not wholly gone yet; he would try to remember. He rose to his feet, and perhaps the slight physical effort helped to stir his dull mind.

Suddenly he trembled violently from head to foot, and his colour changed from the natural complexion it had taken of late to a deadly pallor. For an instant his whole nature seemed to be convulsed, he reeled to and fro and caught himself by the heavy frame of his bedstead, staring wildly about, and fell backwards across the pillows, clutching the counterpane to right and left of him with his two hands, his face distorted and horrible to see.

It only lasted for a moment, and he regained his feet, stood still for a few seconds, and passed his hands across his eyes and seemed at once to recover his faculties. He took Batiscombe's letter again and read it over, as though fixing the few words and the address in his mind. The vacant expression of ten minutes ago had changed to a look of supernatural intelligence and cunning. He put the letter in his pocket and sat down at the table. He opened some of the envelopes again and scattered the papers about, eying the effect rather critically. He then took his dressing-case, opened it, and removed one small tray, and then a second. In the bottom of the box was a revolver, bright and ready, with all its appurtenances, a few cartridges lying loose in their little compartment. The weapon was loaded, but he carefully opened it and examined each chamber, turning it round slowly by the light. It was not a large pistol, and when he was sure that it was in order, he put it carefully into the inside pocket of his coat, and surveyed the effect in the glass. No one would have suspected that he was armed.

He saw that his hat was ready in its place, and he rang the bell and sat down at his table once more, holding a letter in his hand, as though reading. The confidential servant appeared.

"Will you please to bring me a lemonade?" said Marcantonio, with perfectly natural intonation. The man bowed and retired to execute the order. His master seemed better than usual, he thought; the appearance of the papers and Carantoni's bland smile had completely deceived him.

As soon as he was alone he took his hat, felt that he had his purse in his pocket, and opened the door to the sitting-room. Diana was not there, for she generally wrote her own letters until Marcantonio appeared with his correspondence, asking her to answer it for him. The servant was gone to get the lemonade and Marcantonio slipped quietly out on tiptoe.

Once upon the main staircase of the hotel he ran nimbly down, humming a little tune in a jaunty fashion, to show everybody that he was at his ease. Of course the people in the house had no idea that he was insane. It had been Diana's chiefest care to conceal the fact from every one; and Marcantonio walked calmly past the porter's lodge into the street, and took a cab. It was nearly midday and the thoroughfares were less crowded than in the morning and evening; the cab flew rapidly over the smooth pavement to the station.

There are many trains to Cuneo in the summer season, and before very long Carantoni found himself in a smoking-carriage with three or four men, all reading the papers and smoking long, black cigars with straws in them. He lit a cigarette, bought a paper just as the guard was closing the doors, and he rolled out of the station, looking just like anybody else. He pretended to read, and no one noticed him.

When the servant returned with the lemonade and found that Marcantonio was gone, he did not suspect what was the matter, but put the glass on the table and went back to the antechamber and waited at his post. He waited a few minutes and then knocked at Diana's door, and asked if the signore were with her.