Magical machines, wizards, witches, mysterious underworlds, a race against time - and two most magical girls.

Annabel Grey has been brought up to be a very proper Victorian young lady. But being 'proper' isn't always easy - especially when you can sometimes see marvellous (as well as terrifying) things in puddles. But parlour tricks such as these are nothing compared to the world that Annabel is about to enter...

After the rather sudden departure of her mother, Annabel is sent to live with her aunts. They claim to be Shoreditch witches, and from a very old family line of them too. They're keen to introduce Annabel to their world of transformation, potions and flying broomsticks (which seem to have strong personalities of their own) but are horrified when Annabel announces not only does she not know any magic, young ladies shouldn't believe in such things. But before Annabel has time to decide whether she does or not, she is swept into an urgent quest.

The trees of Highgate have been whispering to Kitty - an extraordinary urchin of a girl, who Annabel's aunts seem very fond of - and so have the fairies. They talk of a terrible, dark magic that wants to devour all of London. And of a most magical girl who might be able to stop it . . .

This sparkling and enchanting story is sure to bewitch you, so curl up in front of the fire, and prepare to be swept away . . .