Agatha Raisin and the Love from Hell
M.C. Beaton
Recently married to James Lacey, amateur sleuth Agatha Raisin quickly
finds that marriage is not all it's cracked up to be. When James turns up
missing, a blood stain the only evidence, Agatha is determined to find her
husband. Then her husband's suspected mistress is found murdered and
Agatha joins old friend Sir Charles to crack the case.
This summary is courtesy of McNaughton Books