Delete All Suspects

In the quirky, engrossing fourth "techno-cozy" from Agatha Award–winner Andrews (after 2004's Access Denied ), Alexandria, Va., PI Tim Pincoski and his buddy, Turing—an Artificial Intelligence Personality—are hired by Eunice Stallman, whose 22-year-old grandson, Eddie, has landed in the hospital after a hit-and-run. Mrs. Stallman wants Tim and Turing to investigate not the accident (which may have been not so accidental) but her grandson's computer company. The mysteries quickly multiply: is innocent-looking granny really who she claims to be? Was Eddie responsible for a phishing scheme that bilked innocent e-mailers out of thousands of dollars? This novel lacks the local color and charming cast of Andrews's popular Meg Lanslow series (Owls Well That Ends Well , etc.), but it's full of surprising twists and turns and should keep techies glued to the page. (Nov.)