V. E Schwab

"It's been seven years since Kell, Lila, and Holland defeated the evil force known as Osaron. Lila has spent those seven years as captain of a ship, exploring her new magical world and occasionally spying for the Crown. Kell has spent them learning to fight with ordinary weapons now that wielding his magic causes him intense pain. Holland, of course, gave his life to defeat Osaron. But now a shadowy organization called the Hand is plotting against...