Death Goes Postal by Rosemary and Larry Mild

Abner Fraume is killed by Emil Kravitz for some research work and artifacts that are worth a lot of money. However, they were not in Abner's possession. He did send his sister Edythe clues as to the whereabouts of the artifacts. So, Emil heads to America to find Abner's letters and the clues they contain. Edythe has cancer and her husband Bernie has Alzheimer's and she is worried about the bookstore they own called Olde Victorian Bookstore. She talks to their customer's Rivka and Daniel Sherman who run their mystery critique group and asks they to buy the shop. The Sherman's agree and shortly after Edythe succumbs to her illness. Things start happening around the shop and they learn from their employee Liz about the letter's from Edythe's brother and the research he did. They learn of Abner's murder and realize Emil is looking for what they have in their possession. Emil kidnaps Rivka and Daniel along with the FBI try to uncover where he has taken her and get her back. There is a lot going on in this book. People who are not who they seem to be and Daniel and Rivka they are all suspects in Abner's murder. They decide the murderer has to be one of the new members of their critique group. They don't know who to trust and each is interrogated after Liz is attacked and the bookstore is broken into. Lots of twists and turns in this story, including Abner's two children meeting for the first time. Each part of the story is tied up at the end and everything is explained in detail. Well written plot that is effortless to read. Nice way to pass time reading such an enjoyable tale that keeps you guessing from the first.