“In that case,” said I, “we had best carry our breakfast with us, for he is making an early start. His carriage is at the door.”

“Never mind. Let him go. He will be clever if he can drive where I cannot follow him. When you have finished, come downstairs with me, and I will introduce you to a detective who is a very eminent specialist in the work that lies before us.”

When we descended I followed Holmes into the stable yard, where he opened the door of a loose-box and led out a squat, lop-eared, white-and-tan dog, something between a beagle and a foxhound.