Everything you need to understand or teach The Last Battle by C. S. Lewis.
"The Last Battle" by C.S. Lewis begins by introducing a donkey named Puzzle and an Ape named Shift. They sit on the banks of the Caldron Pool beyond Lantern Waste. Puzzle has been convinced that he is not clever and that Shift should make all of the decisions. The two sit down and see something in the water. The item in the water is a lion skin, which Shift states...