Not for the first time in the history of the universe, someone for whom communication normally came as effortlessly as a dream was stuck for inspiration when faced with a few lines on the back of a card.
Terry PratchettIt was octarine, the colour of magic. It was alive and glowing and vibrant and it was the undisputed pigment of the imagination, because wherever it appeared it was a sign that mere matter was a servant of the powers of the magical mind. It was enchantment itself. But Rincewind always thought it looked a sort of greenish-purple.
Terry Pratchett