Battley curtly agreed, and took himself off without delay. In his queer, sardonic way, Charlock seemed to be amused about something, for he chuckled to himself as he walked up and down the room.
"What foolish things clever men can do sometimes," he said. "Now, you see perfectly well what that fellow has got in his mind. Nothing will persuade him that I hadn't a hand in my wife's death. He is convinced that I had an interview with her before you came into the house. It is lucky for me that you can give evidence to the contrary."
"Are you not a little foolish yourself?" Grey ventured. "You might have taken what the inspector said in a more friendly spirit, and you admit that there are plenty of people who regard you as a most undesirable man to marry any woman. Of course, I know I am going rather far——"
"My dear fellow, nothing of the kind. I know you are only too ready to help me, and in my own way I am grateful. Besides, I am certain that I am right. Let us assume for a moment that Hortense stole those jewels. The night my wife left here on her foolish mission with Arnold Rent she intended to take her diamonds with her. With all her saint-like purity and innocence, she did not forget their value. But the diamonds were gone. It did not matter so very much, however, seeing that my wife was to find an asylum with Mrs. Rent and remain under that lady's roof till I should generously make a fool of myself and give her the chance of getting rid of me altogether. But when Mrs. Rent figures as a woman of firmness and determination the whole situation is changed. Then it becomes necessary to secure those gems. That is why my wife came here. And you needn't be afraid about what people say of me. What does it matter what they say? What does anything matter? My life has been blackened and ruined because I was fool enough to mistake a cold-blooded, self-seeking creature for a good and true woman. If they like to say that I had a hand in her death, they can if they please. They ought to be grateful to me for giving them something to talk about!"
It was in vain that Grey protested, for Charlock turned a deaf ear to him. Then the artist walked out of the room across the grass towards the sundial.
CHAPTER XXXII
SWIFT COMES OUT
As was only natural in the circumstances, the tragic death of Mrs. John Charlock created a profound sensation. The accident to the French maid had set most people talking, but the unfortunate end of the mistress in the same mysterious fashion bade fair to become a general topic of conversation. The whole thing was so simple, and yet so strange and out of the common. A score of theories were set on foot, but not one of them worked out in a satisfactory manner. The police were plainly at fault, and though Inspector Battley was reinforced by a colleague or two from Scotland Yard, the end of the week found the authorities no nearer the solution of the trouble than they had been at the beginning of the inquiry.
As for Grey and Tanza, they went their own way, which was by no means the way taken by the police. Ephraim Bark was still in the neighbourhood, and his movements were watched by Tanza and Grey with a patient care which would have astonished that worthy had he only known of it. Grey had his own theory, which he was developing slowly. It was an integral part of his theory that Bark could have said a great deal more had he chosen to do so. And there was yet another person whom Grey was keeping a close eye upon. He had by no means forgotten the torn photograph he had found in the French maid's room. He did not ignore the information as to Arnold Rent's strange friendship with the dead Frenchwoman. And there was another item of which, as yet, Grey had said nothing to anyone. He was coming to his conclusions now—conclusions so strange and startling that he hardly dared trust himself to believe them. A week passed slowly, during which nothing particular had happened, and Arnold Rent appeared to get no better. So far as Grey could gather, his brother scientist had had a nasty fall, which, for the time being, had affected his intellect. There was a good deal of mystery about the affair, and Grey was at some pains to make the acquaintance of the doctor who was attending Rent. The thing was accomplished at length through Tanza, who made some pretext for inviting the doctor to dine aboard his yacht. Very cautiously and patiently Grey led up to the subject which was next his heart. The thing was so naturally done, and Tanza played into his hands so cleverly, that the doctor fell into the trap at once.
"Oh, so you know Mr. Rent," he said, as he lay back in a deck-chair smoking a cigar. "An exceedingly clever fellow, who, unless I am much mistaken, will make his mark in the world yet. A strange illness that of his, by the way."