SHORTLISTED FOR THE 2013 GUARDIAN FIRST BOOK AWARD On the internet, we can be anyone we choose. No one knows who we really are. Sheltered and obsessive, Leila spends more time online than out in the real world. So she seems the ideal person to take over the virtual identity of the vivacious and fragile Tess, who wants to disappear. But even with all the facts at her fingertips, there are things that Leila can't possibly know about Tess - or herself - until it is too late . .