I'm fascinated by the relationship of fiction to nonfiction.  True events drive the fantasy in Monty Finds His Family Tree. Here is the Introduction...     Scientists have said that one flap of a butterfly’s wings can have an affect on the weather of the world.  Just imagine what millions and millions of flaps can do. When autumn arrives, hundreds of millions of Monarch butterflies migrate from Canada through the United States to spend the winter under the protection of the pine and fir forests in central Mexico.  This is a story of one such family of butterflies on their journey south to complete the other half of a miracle.