When Ben and Tiffany join a class at the local youth centre, they're not expecting to be taught by someone like the mysterious Mrs Powell, or to learn an Ancient martial art which teaches them cat-like 'Mow' abilities like seeing in the dark and fighting with claws. But will nine lives be enough against the villains they discover in the streets of London?
Who is Mrs Powell, with her silent feet, unnerving stare and merciless warm-up exercises? What does she really want?
Can the men threatening Ben and his mother, trying to take their home, be stopped?
And what is the secret behind the mysterious pills which seem to be making Tiffany's chronically ill brother better?
All three are linked, and Ben and Tiffany will soon be glad of their training and new gifts, as they take on villains whose cunning is matched only by their cruelty.
