"My line of thoughts about dogs is analogous. A dog reflects the family life. Whoever saw a frisky dog in a gloomy family, or a sad dog in a happy one? Snarling people have snarling dogs, dangerous people have dangerous ones. And their passing moods may reflect the passing moods of others."
I shook my head. "Surely, Holmes, this is a little far-fetched," said I.
He had refilled his pipe and resumed his seat, taking no notice of my comment.
"The practical application of what I have said is very close to the problem which I am investigating. It is a tangled skein, you understand, and I am looking for a loose end. One possible loose end lies in the question: Why does Professor Presbury's faithful wolf-hound, Roy, endeavour to bite him?"
I sank back in my chair in some disappointment. Was it for so trivial a question as this that I had been summoned from my work? Holmes glanced across at me.
"The same old Watson!" said he. "You never learn that the gravest issues may depend upon the smallest things. But is it not on the face of it strange that a staid, elderly philosopher—you've heard of Presbury, of course, the famous Camford physiologist?—that such a man, whose friend has been his devoted wolf-hound, should now have been twice attacked by his own dog? What do you make of it?"
"The dog is ill."
"Well, that has to be considered. But he attacks no one else, nor does he apparently molest his master, save on very special occasions. Curious, Watson—very curious. But young Mr. Bennett is before his time, if that is his ring. I had hoped to have a longer chat with you before he came."
There was a quick step on the stairs, a sharp tap at the door, and a moment later the new client presented himself. He was a tall, handsome youth about thirty, well dressed and elegant, but with something in his bearing which suggested the shyness of the student rather than the self-possession of the man of the world. He shook hands with Holmes, and then looked with some surprise at me.
"This matter is very delicate, Mr. Holmes," he said. "Consider the relation in which I stand to Professor Presbury, both privately and publicly. I really can hardly justify myself if I speak before any third person."