He was a very tall, thin man, with a long nose like a beak, which jutted out between two keen, gray eyes, set closely together and sparkling brightly from behind a pair of gold-rimmed glasses.

He was clad in a professional but rather slovenly fashion, for his frock-coat was dingy and his trousers frayed.

Though young, his long back was already bowed, and he walked with a forward thrust of his head and a general air of peering benevolence.

As he entered his eyes fell upon the stick in Holmes's hand, and he ran towards it with an exclamation of joy.

"I am so very glad," said he.