In The Silver Chair by C.S. Lewis, Jill Pole is given four signs by Aslan in order to guide them on a quest to save King Caspian’s missing son, Prince Rilian. Aslan gives Jill the following instructions: “But, first, remember, remember, remember the signs. Say them to yourself when you wake in the morning and when you lie down at night, and when you wake in the middle of the night. And whatever strange things may happen to you, let nothing turn your mind from following the signs. And secondly, I give you a warning. Here on the mountain I have spoken to you clearly: I will not often do…