Blackbird

My name is Alex. I am fifteen years old, and I don't know where my sister is. Or if she will ever come back. On New Year's Eve 5,000 blackbirds dropped dead. The same day Olivia McCarthy went missing from a small coastal village in Orkney. Now Her younger sister Alex is on a mission to find out just what happened to Olivia. But does she really want to know all the answers?