"Dear Mr Kemball,--I fear, owing to the fact that I have promised Asta to take her motoring on Sunday, that I may not be able to keep my appointment with you. Since my confidential conversation with you, I have watched and discovered certain things at Lydford which cause me the keenest apprehension. Shaw is not what he pretends to be, and many of his movements are most mysterious. By dint of constant watching both while I have been guest there and also by night when they have believed me to be safely at home, I have ascertained several very remarkable facts. "First. In secret and unknown to any--even to his gardeners--he sets clever traps for small birds, which he visits periodically at night, and takes away the unfortunate creatures he finds therein. "Secondly. He is in the habit of going forth in the night and walking through Woldon Woods to a spot close to Geddington village, at the corner of the road from Newton, and there meeting a middle-aged man who frequently stops at the inn. Once I followed them and overheard some of their conversation. They were planning something, but what I could not make out. However, I feel sure that they both discovered my presence, and hence he seems in fear of me and annoyed whenever I visit Lydford. "Thirdly. In his bedroom there is a cupboard beside the fireplace. The door is enamelled white, and at first is not distinguishable from the rest of the panelling. Examine it, and you will see that it is secured by two of the most expensive and complicated of modern locks. What does that cupboard contain? The contents are not plate or valuables, for there is a large fireproof safe downstairs. Some mystery lies there. "Fourthly. Though he makes most clever pretences of devotion to Asta, he hates her. Poor girl, she loves him, and cannot see those black, covert looks he so often gives her when her back is turned. But I have seen them, and I know--at least, I have guessed--the reason. "Fifthly. If you are a frequent guest there, you will hear him sometimes utter a strange shrill whistle for no apparent purpose, as though he does it quite unknowingly. But it is with a purpose. What purpose? "I feel that Asta is in danger, and it is therefore my duty to protect her and elucidate the mystery of the strange conspiracy which I feel convinced is now in progress. It is to discuss these matters, and to combine to keep vigilant watch, that I am anxious to spend a few hours with you. Think carefully over these five points, and if I am unable to come on Sunday I will motor over on Monday about eleven in the morning. "Meanwhile be careful not to show that you either know or suspect anything. I know Shaw suspects me, and therefore by some means I must remove his suspicions. "That, however, will be a matter for us to discuss seriously when we meet.