Can I ask you a question? You know with vampires and werewolves and goblins and things, is there any mythological creature that doesn't actually exist?" "Of course," he replied. "The unicorn and the leprechaun would be would be the two main ones. The Loch Ness Monster isn't real, either, that's just someone called Bert.
Derek Landy (2015). “Skulduggery Pleasant:”, p.140, HarperCollins UK