The DUNCAN was newly built, and had been making a trial trip a few miles outside the Firth of Clyde. She was returning to Glasgow, and the Isle of Arran already loomed in the distance, when the sailor on watch caught sight of an enormous fish sporting in the wake of the ship. Lord Edward, who was immediately apprised of the fact, came up on the poop a few minutes after with his cousin, and asked John Mangles, the captain, what sort of an animal he thought it was.