Cat Warren is a professor and former journalist with a somewhat unorthodox hobby: she works with cadaver dogs — dogs who search for missing and presumed-dead people. What started as a way to harness the energies of her unruly, smart, German shepherd puppy, Solo, soon became a passion for them both (though Solo thinks it’s simply a great game, with the reward of a toy at the end). They searched for the missing throughout North Carolina for eight years.