This is a stub for a lore book about some history and theorycrafting about the Nightblade discipline. As classes are self-identified "styles" of magic and martial skill in Tamriel this book should be an in-world examination of where this classes' skills originate from. It could mention some prominent characters in lore or the game that represent the class, and could discuss why these particular skills come together into the 'package' that represents the class.