Book excerpt: ONE OF PUBLISHERS WEEKLY BEST BOOKS OF THE YEAR! With echoes of Gone Girl and My Lovely Wife, Sarah Bonner's debut novel introduces an exciting new voice in twisty thrillers. HER PERFECT TWIN. YOUR NEW OBSESSION. When Megan discovers photographs of her estranged identical twin sister on her husband’s phone, she wants answers. Leah already has everything Megan ever wanted. Fame, fortune, freedom to do what she wants. And when Megan confronts Leah, an argument turns to murder. The only way Megan can get away with killing her twin is to become her. But then lockdown hits. How can she continue living two lives? And what happens if someone else knows her secret?