Vanishing-act Stories

Sarah and Mara have been the best of friends since they were four years old, telling each other everything. But for the last few months, Mara have been keeping secrets. Now she's gone and disappeared and no one has any idea where she's gone. But when Sarah starts getting messages off an anonymous account saying that 'they' know where Mara is, she's surprised to find out that Sarah didn't really know her so called "best-friend". Because best friends don't keep secrets. And they certainly don't leave each other alone.