It’s called sunken scotch. And it’s practically a category unto itself: whisky rescued from the cargoes of a wrecked ship, resting for untold periods of time below the tides. Every few years tales of brown spirit raised from these depths grab headlines, while the liquor itself fetches top dollar at auction. The latest example happens to be scotch salvaged from perhaps the most famous shipwreck of the modern era. And it’s expected to earn as much as $20,000 in an on-going auction.