As for Ballingall's pretensions to having shared the woman's hallucination--if hallucination it was--the doctor pooh-poohed them altogether. The man was as mad as the woman, and madder; and an impudent rogue to boot. Where was he? Let him come forward, and allow himself and his statements to be scientifically tested. Then it would be shown what reliance could be placed on anything which he might say. But where Ballingall was, was exactly the problem which they found insoluble. He had vanished as completely as if he had never existed. The presumption was, that while they had been absorbed in watching Madge's efforts to carry on the work of discovery from the point at which the woman had left it, he had sneaked, unnoticed, from the room and from the house. The curious feature was that they were unable to agree as to the exact moment at which he could have gone. Bruce Graham declared that he was in the room when he went to fetch the hammer and chisel, and that he was still there when he returned. Madge protested that he was in the room when she ran across to the recumbent figure on Ella's bed. If so, since Jack discovered his absence within less than a minute afterwards, it was during that scant sixty seconds that he made good his escape. Why he had gone at all was difficult to say. One might have thought that after what he had undergone during his search for the fortune he would hardly have disappeared at the moment of its finding. He had suffered so much in looking, that he had earned at least a share, when at last it was brought to light. Such, certainly, was the strong feeling of its actual discoverer. He stood in need enough of money; that was sure. Why then, at what from one point of view might be described as the very moment of his triumph, had he vanished? He alone could tell. They could only give wild guesses. Nothing has been seen or heard of him from that hour to this. They put advertisements for him in the papers, without result. Then, as they felt that living the sort of life which he probably was living--that is, if he was living at all--it was within the range of probability that a newspaper would never come his way, and that he would never glance at it if it did, they distributed handbills broadcast through the slums of London, beseeching him to apply to a certain address, and offering a reward to any one who could give an account of his proceedings after the night on which he had taken himself away.