“Careless Love”,  Peter Robinson’s twenty-fifth DCI Banks novel, begins with a puzzler.  A student’s body is found in an abandoned car on a lonely country road. She didn’t own a car; didn’t even drive. How did she get there?  Meanwhile, the body of a man in evening dress is found on the moors.  The epicurean Banks will no doubt resort to multiple Indian takeaways, pints of bitter and a deep dive into his CD collection to solve this  mystery.  Of late, Sophie Hannah has made a name by writing new Poirot stories.  In her new stand alone, “The Next to Die”, a killer is targeting pairs of best friends. Before they die, each victim is given a small white book.  When a stand-up comedian is given a white book by a fan, she is both startled (“am I a target”) and baffled (“Why me? I don’t have a mate”).  “Hannah raises the stakes with each successive page in this haunting and twisting thriller.”