Which Books Left a Lasting Impression on You?

Questions about favorite books that left a lasting impression on Greg and Amy, their response to Christians who warn that all fantasy novels (including C.S. Lewis’s books) tap into demonic ideas, and where to draw the line when it comes to the fantasy genre. Which books (fiction or non-fiction) are your favorites and left a lasting impression? How would you respond to Christians who warn against all sorts of fantasy novels (including C.S. Lewis’s books), saying they’re tapping into demonic ideas, and where would you draw the line for yourself and for your children?