The face-changers - Thomas Perry

Can a woman who's rescued countless victims now save herself from an unknown enemy? After over a decade as a "guide" who helped people in trouble disappear, Jane Whitefield has promised her new husband, Dr Carey McKinnon, that she will never work again. But when Carey's mentor, a famous plastic surgeon, shows up wounded and wanted for murder, Carey asks her to perform her magic one last time. And, in trying to save her client, Jane learns that the deadly Face-Changers are using her name, reputation, and techniques to destroy human lives rather than preserve them.