I'm reading Ransome Riggs' Miss Peregrine series, finally. (The first book has been on my list for years.) I usually experience a terrible sense of loss when I finish one--but it's unusual to fall in love with first page.
What makes this beginning so good? In the prologue, we're taken into this new world through a grandfather's crazy stories, in which the narrator, Jacob, only half believes. In Chapter One, the novel jumps forward in time, and the now sixteen-year-old Jacob realizes that one of those stories may have murdered his grandpa. It's endlessly inventive and very peculiar. And has fantastic photos.