Red Moon by Benjamin Percy Grand Central Publishing/Hatchette Books Group, $25.99, 531 pages, ISBN 978-4-4555-0166-3 The topic this week is lycanthropy: the belief that humans can turn themselves into wolves, commonly known as werewolves. And let’s just suppose for a minute that werewolves weren’t the product of a deranged mind or a folk tale. Let’s suppose that werewolves (or lycans short for lycanthropes) live among us and have grown