The brand-new novel from the Sunday Times bestselling author of Faking Friends and Tell Me a Secret Georgia and Lydia are so close they’re practically sisters. So when Lydia starts an online business that struggles, Georgia wants to help her - but she also understands Lydia’s not the kind to accept a handout. Setting up a fake Twitter account, Georgia hopes to give her friend some anonymous moral support by posing as a potential customer. But then Lydia starts confiding in her new internet buddy and Georgia discovers she doesn’t know her quite as well as she thought. Especially when Lydia reveals a secret that could tear Georgia’s marriage apart …