The Hooks files III

In 1930s America, retired civil engineer Elias Hooks teams up with his eleven-year-old cousins, Jessica Sinclair and Billy Coupes, to solve a series of mysteries. The trio uses period-appropriate technology and methods to recover hidden wealth, find a lost family member, uncover embezzlement, and right an unjust lawsuit. Their investigations also prompt them to consider questions of personal conduct and collective ethics.