The story moves to London where Modesty and Willie Garvin manage to sabotage one of Brunel's operations, and then to France where Brunel turns the tables and captures Modesty and Willie and Dr. Pennyfeather.
The story moves to London where Modesty and Willie Garvin manage to sabotage one of Brunel's operations. But then Lisa, Brunel's adopted daughter, tricks Willie, and in France Brunel turns the tables and captures Modesty and Willie and Dr. Pennyfeather.