Brad le Chat is the greatest art thief in all of France. When he tries to rob Tallulah's house there's only one thing she can do to protect herself. She must become a Ninja. Really? That's the only thing she can do? Every cat is a natural-born Ninja. Ninjas are not afraid. Ninjas have inner peace. Ninjas have Zen. But can Calypso help Tallulah find Zen and become a Ninja? Calypso is a sweet, bossy, clever little cat who lives with Tallulah in 1920s Art Deco Paris. She knows all the Important Cat Rules off by heart and has an answer for everything. Tallulah travels around the world having adventures and Calypso goes too, to keep an eye on her. She helps Tallulah to be brave and fierce and independent. Calypso's stories are about facing your fears, overcoming obstacles with a sense of humour and not being afraid to do things your way. Young or old, anyone who knows and loves cats will recognise their own furry friend in Calypso's attitudes and behaviour.