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?

Ever since Harry Potter had come home for the summer, the Dursleys had been so mean and hideous that all Harry wanted was to get back to the Hogwarts School for Witchcraft and Wizardry. But just as he’s packing his bags, Harry receives a warning from a strange impish creature who says that if Harry returns to Hogwarts, disaster will strike.And strike it does. For in Harry’s second year at Hogwarts, fresh torments and horrors arise, including an outrageously stuck-up new professor and a spirit who haunts the girls’ bathroom. But then the real trouble begins – someone is turning Hogwarts students to stone. Could it be Draco Malfoy, a more poisonous rival than ever? Could it possibly be Hagrid, whose mysterious past is finally told? Or could it be the one everyone at Hogwarts most suspects… Harry Potter himself!

Ice, myth, magic and danger in this bone-chilling, page-turning, beautifully written fantasy novel set in the same world as A SHIVER OF SNOW AND SKY. Blood-red lights have appeared in the sky over the frozen island of Skane, causing a cloak of fear and suspicion to fall over the village like a blanket of snow. In a desperate attempt to keep out the plague, the village elders barricade its borders - no-one, no matter how in need of help, will be permitted to enter in case they bring infection with them. Teenager Janna refuses to turn her back on people seeking refuge and is banished to the swirling snow and lurking darkness beyond the village. Can she survive?