Aslan

"He'll be coming and going...One day you'll see him and another you won't. He doesn't like being tied down--and of course he has other countries to attend to. It's quite alright...He'll often drop in. Only you mustn't press him....he's wild, you know....not like a tame lion."
- Mr. Beaver, 'The Lion, The Witch And The Wardrobe', 1950.