Castle Clock ScreenSaver - Version 2010.2 Long ago in ancient castle the secret of the philosophers' stone was found. The stone is able to turn inexpensive metals into gold and create an elixir that would make humans younger. Since when many people had tried to disclose the secret with almost no success. Now we know the secret - the time is just a feeling and all we need to be always young and happy is to show real interest in life as it is.