Freddie the Freeloader, a Seth and Ava Mystery - Seth and Ava Mysteries, #8

When Ava O'Malley and her forensic science team received a grant from the Colorado Bureau of Investigations to bring modern forensic science to cold cases in the rural areas of Colorado, they never thought their lives would be in danger. But these cold cases have been hard, complicated, and life threatening. So when "The Evil Wizard, " Ava's nickname for her boss, asks Ava and her team to identify the owner of two bone segments of an index finger, they should have expected danger and difficulties.
Two small bones grew into an entire bone field in the near center of the Colorado Rockies. Every set of remains was missing the ends their index fingers. Ava and her team get to work. But when Ava discovers why these people were chosen, her life is immediately in danger.