Working on a new series of novels, I've been thinking. Most of my other books have been stand-alone, but this time I'd like to make a series. Does the first novel in a series need to have big stakes, and really pull you in, or can it be less-global on its scale, but with an equally fast pace. I have a few ideas in my head (each are independent), and each one really excites me. Does it matter in which order they are written, or can the order be mixed up, starting with a calmer project?