4This book is about Marco Loristan, his father, and his friend, a street urchin called "The Rat". Marco's father, Stefan, is a Samavian patriot working to overthrow the cruel dictatorship in the kingdom of Samavia. Marco and his father come to London where Marco strikes up a friendship with a crippled street urchin known as The Rat. The friendship occurs when Marco overhears The Rat shouting in military form. Marco discovers he had stumbled upon a club known as the Squad, where the boys drill under the leadership of The Rat, whose education and imagination far exceeds their own.