This story takes place somewhere in Italy, perhaps in Naples, and perhaps in the early nineteenth century, at the end of the Age of Enlightenment. Prince Luciano de la Volta has only one interest in life: playing dominoes. Luciano has been plagued by insecurity, raised in the shadows of the principle of methodic doubt. When he is orphaned, he can only find security in his wooden and ivory domino pieces and the deductible reasoning and logic involved in playing the game. This leads him to arrive at a simple conclusion: the secret to understanding the world lies in the progressive approach to the truth that is clearly reflected in the movement of the dominoes when they fall neatly in the so-called ´domino effect.´ This novel, winner of the VIIIth Reading Is Living Prize for Young Adult Literature, will hold young readers´ interest with its captivating plot and suspenseful tension. Even the title of the novel contains an enigma that readers will want to solve in their own personal way. The text will encourage young readers to interpret its many possible meanings.