The Chronicles of Narnia are not available for free online. You may be able to purchase electronic copies through some book sellers, but free copies are a violation of International Copyright laws However, there is an audio version online at Ancient Faith Radio, if you don't mind listening to the text. They have full permission from CS Lewis Pte.Ltd.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.