A KILLER'S CHRISTMAS IN WALES (Elizabeth Duncan)

Penny Brannigan and her friend Victoria are preparing for the opening of their new spa in Llanelen, Wales, as Christmas approaches.  When a new man, Harry, arrives in town, he charms everyone, especially widow Evelyn Lloyd, who agrees to invest 20,000 pounds with him and hopes that he might take their romance to the next level.  When Harry falls to his death from a popular local tourist attraction, a historic castle, suspects abound, especially after Evelyn's missing letter opener is discovered to be the murder weapon.  A subplot of petty thefts rounds out this pleasant mystery, the third in Duncan's Penny Brannigan series.  As usual, there is a romance between amateur sleuth penny and the local police chief!  This would be a nice read for a winter afternoon recovering from the busy holidays.