Southwest mystery veterans David and Aimee Thurlo discuss and sign their two new books,Bad Samaritan (Minotaur, $24.99)- the newest in the Sister Agatha series, and The Never-Ending Snake (Forge, $24.99), Ella Clah's newest adventure. 

Bad Samaritan's Sister Agatha of the Our Lady of Hope monastery in Bernalillo, New Mexico has become renowned-and occasionally infamous- for her crime solving skills. Now she must bring her skills to bear on her most important case yet-her friend and ally Sheriff Tom Green is a suspect in the brutal murder of his rival in the upcoming election.