When Alex and Ruby fall through the mirror in their aunt's house, they find themselves in a different historical period, each time with a different task to perform before they can return to the present. From Edwardian crime capers to Victorian Christmasses, their time-slip stories are always exciting and beautifully told. A Victorian Christmas is lovely - all the food and candles and games and singing - unless you're poor, motherless Edith who is condemned to be sent to a cruel boarding school on Boxing Day. Can Alex and Ruby persuade her strict father that home is where the heart is instead?