Harry Cobb: An Inner Solar System Private Investigator. Journey to Mars with Intra-solar system investigator, Harry Cobb. Cobb wants answers when a potential client is murdered in the Martian desert. He is hindered by the powerful Turcotte family and suspects one of their employees. Aided by his investigative team, Cobb believes his old love could be the killer and he travels to her space colony to find the truth.