I have an idea that I like for the beginning of my novel, my only issue is that the first character the readers would encounter is not one of the main characters. The main character comes in shortly, however. Should I try to figure out something different, or go ahead? I know of at least one book where this is done, Anne of Green Gables-- the first character we encounter is Mrs. Lynde-- but it is done in such a way that I don't feel it really takes away from the rest of the story. However I know it isn't what you're supposed to do, generally speaking. Thoughts?