The Inheritance

From BoardGameGeek:

The McClains are one of the oldest and richest families in Valley Falls. So when the current patriarch of the family, Edison McClain, asks for your help and is willing to make it worth your time, how can you say no? Edison was planning on naming his heir and the next head of the family. So he called together all of the McClains and proposed a game as a last test to see the worthiness of those he deemed had potential. But someone in the family had other ideas. During the family get-together, the McClain's oldest and most prized possession, a medallion bearing the household's coat of arms, was stolen. This 500-year-old family heirloom is believed by the family to be the reason for their wealth and success throughout the years. Without the medallion Edison can't name his heir, and he fears the family will fall into ruin. Will you be able to find the thief and the medallion? Can you recover The Inheritance? Difficulty Level - 7/10