The multiverse is a weird and wonderful concept. It’s actually several concepts stacked on top of one another wearing a trenchcoat. In One Verse Multi, Sander Santiago plays with some of those concepts to create a universe-hopping mystery involving polyamorous love interests, evil corporate aspirations, and dramatic confrontations. I wasn’t sure what to expect when I started this book, and I don’t think I could have predicted what I got. I wish I had…