Addison Cooke and the Tomb of the Khan (Addison Cooke, Bk. 2)

When Addison's aunt and uncle become pawns in a dangerous gang's plan to raid the tomb of the notorious Mongolian leader Genghis Khan, Addison and his friends once more find themselves caught in the middle of an international heist. Armed with nothing but their wits and thirst for adventure, they travel across Asia in an attempt to rescue Addison's family and prevent the treasure from falling into the wrong hands. Can Addison save the day yet again?