Lyra Belacqua tries to prevent kidnapped children from becoming the subject of gruesome experiments, helps Will Parry search for his father, and finds that she and Will are caught in a battle between the forces of the Authority and those gathered by her uncle, Lord Asriel.
Harvard symbologist Robert Langdon and French cryptologist Sophie Neveu work to solve the murder of an elderly curator of the Louvre, a case which leads to clues hidden in the works of Da Vinci and a centuries-old secret society.