March 8, 1888: Holmes learned that Jack Douglas had been lost at sea. [VALL]
“No, I don’t say that,” said Holmes, and his eyes seemed to be looking far into the future. “I don’t say that he can’t be beat. But you must give me time – you must give me time!” We all sat in silence for some minutes, while those fateful eyes still strained to pierce the veil.
Source
A Day by Day Chronology of Sherlock Holmes by William S Dorn DWNP, BSI