Charlie Bone crackling with magic! five thrilling stories

Charlie Bone awakes one morning to find the city covered with snow and all the animals gone. Where have they gone - and why? Blessed the dog tells Billy there was a terrible shuddering of the earth and immediately after, he saw a witch with two shadows crossing the hall in Bloor's Academy. Could the discovery of an ancient mirror, and the movement of the shadow in the Red King's portrait have something to do with it?