The term 'Lion in 'Narnia' Tales' refers to the character ASLAN, a talking lion who is the main protagonist of C.S. Lewis's fantasy series The Chronicles of Narnia. ASLAN is a wise and powerful figure who serves as a mentor and protector to the human children who visit the magical world of Narnia. He is also a symbol of hope and courage, inspiring the characters to fight for justice and stand up for what is right.