“The man’s name was Arthur Cadogan West. He was twenty-seven years of age, unmarried, and a clerk at Woolwich Arsenal.”

“Government employ. Behold the link with Brother Mycroft!”

“He left Woolwich suddenly on Monday night. Was last seen by his fiancée, Miss Violet Westbury, whom he left abruptly in the fog about 7:30 that evening. There was no quarrel between them and she can give no motive for his action. The next thing heard of him was when his dead body was discovered by a platelayer named Mason, just outside Aldgate Station on the Underground system in London.”

“When?”