The sky speaks on the frozen island of Skane. Beautiful lights appear and their colours have meaning: Green means all is well, blue means a snowstorm is coming. And then there's red: Rare. A warning. When the sky last shone red, a terrible plague came to the island - this time around, can our heroine Osa prevent so many lives being lost again?
Available at Dunbar, Longniddry, Musselburgh, NB High School and Prestonpans.