2B Mystery and murder - Blue Skies Student's Book 5 (Traducción de la lectura al español)
The Adventure of the Mazarin Stone.
By Sir Arthur Conan Doyle
Chapter 1
It was pleasant for Watson to walk up the stairs once more to the untidy room on the first floor in Baker Street which was the starting point of so many remarkable adventures. He looked around him at the scientific charts and the bench of chemicals in the corner. Finally, his eyes met the smiling face of Billy, the great detective's young servant.
“Hello, Billy. I was visiting a friend nearby when I decided to come and see Holmes. Is he in?”
Billy glanced at the closed door of the bedroom. “I think he's asleep in bed,” he said.
It was seven in the evening of a lovely summer's day, but Watson was sufficiently familiar with the irregularity of his old friend's hours to feel no surprise at the idea.
“That means a case, I suppose?” “Yes, sir. He spent the day following someone. Yesterday, he went out dressed as a workman looking for a job. Today, he was an old woman.”
Watson frowned....