"I'll go mad if this continues," he said to himself as he directed the envelope, "it is like putting a savage to live among people highly cultivated. I feel the influence, but cannot respond, so I have all the pain and none of the pleasures; an afternoon at Marlow will do me a lot of good and drive away all this phantasy of moonlight and spirituality." So he sent the letter and told Dentham he was going to leave Hampstead the next day for a visit, at which the valet was highly delighted, and sent off a telegram that evening to Miss Maunders, telling her the house would be able to be searched the following day. Olive, on her part, had told her father nothing of the revelations of Dentham, but had got him to ask Dr. Roversmire down to Marlow and then intimated her intention of going away. Sir John at first objected to this strange mode of proceeding, but was ultimately over-ruled by his clever daughter. "I don't know what you mean to do," he grumbled good-naturedly, "but I'll be glad to see Roversmire, who is a very clever man, although you do not seem to like him." "Whether I really like him or not depends entirely upon what I learn during the next few days," she replied. "But where are you going to learn anything about Roversmire?" asked her father curiously. "I'll tell you when I come back," responded Olive promptly. "Well, have your own way," said the baronet with a sigh; "you certainly are an enigma." "Of course," said Teddy Rudall, who entered at that moment, "she is a woman, and that answers everything." Chapter XIII. A Startling Discovery In due time Adrian, feeling depressed and dreary, departed by the early train to Marlow, leaving Dentham in charge of the house at Hampstead. He expected Miss Maunders and Mr. Rudall to call about mid-day, but, prior to their arrival, made an exploration of the sitting-room on his own account, with a view to finding out, if possible, the secret chamber, which Rudall said must exist. But Dentham, though crafty enough in small villanies, was woefully ill-fitted for such a task, and after an hour's hard work, during which he examined the most unlikely places, gave up the search in disgust. If he had calmly sat down and logically argued the matter out, he might have come to some satisfactory conclusion, but, instead of doing this, he hunted about in blind confusion, with the natural result that nothing came of his work. "It's all bosh," muttered Dentham to himself, sitting on a chair and mopping his heated brow. "I don't believe there's any such place--it's my opinion the old cove's killed Mr. Lancaster, and hid his body in the garden." His meditations were brought to an end by the arrival of Olive and Teddy Rudall, both of whom were in a state of suppressed excitement as to the issue of their plan to examine the house during the absence of its owner.