The Great Detective spoke.

“Give me my domino,” he said. “These clues must be followed up,” then pausing, while his quick brain analysed and summed up the evidence before him—“a young man,” he muttered, “evidently young since described as a ‘pup,’ with a long, wet snout (ha! addicted obviously to drinking), a streak of white hair across his back (a first sign of the results of his abandoned life)—yes, yes,” he continued, “with this clue I shall find him easily.”

The Great Detective rose.

He wrapped himself in a long black cloak with white whiskers and blue spectacles attached.

Completely disguised, he issued forth.

He began the search.

For four days he visited every corner of London.

He entered every saloon in the city. In each of them he drank a glass of rum. In some of them he assumed the disguise of a sailor. In others he entered as a solider. Into others he penetrated as a clergyman. His disguise was perfect. Nobody paid any attention to him as long as he had the price of a drink.

The search proved fruitless.

Two young men were arrested under suspicion of being the Prince, only to be released.