“There came a point,” the Colonel went on, now well in his swing, “when I felt compelled to make investigations on my own account. I could not kill the thing by ignoring it; so I collected and analysed the stories at first hand. For this Twelve Acre Wood, you will see by the map, comes rather near home. Its lower end, if you will look, almost touches the end of the back lawn, as I will show you tomorrow, and its dense growth of pines forms the chief protection the house enjoys from the east winds that blow up from the sea. And in olden days, before my brother interfered with it and frightened all the game away, it was one of the best pheasant coverts on the whole estate.”

“And what form, if I may ask, did this interference take?” asked Dr. Silence.