Read it through once

The captain has this peculiarity—he cannot tell the truth in a plausible way. In this he is the very opposite of the austere Scot who sits midway of the table; he cannot tell a lie in an unplausible way. When the captain finishes a statement the passengers glance at each other privately, as who should say, “Do you believe that?” When the Scot finishes one, the look says, “How strange and interesting.” The whole secret is in the manner and method of the two men. The captain is a little shy and diffident, and he states the simplest fact as if he were a little afraid of it, while the Scot delivers himself of the most abandoned lie with such an air of stern veracity that one is forced to believe it although one knows it isn't so. For instance, the Scot told about a pet flying-fish he once owned, that lived in a little fountain in his conservatory, and supported itself by catching birds and frogs and rats in the neighboring fields. It was plain that no one at the table doubted this statement.