The Cat Who Smelled A Rat: Lillian Jackson Braun

In this "Cat who Mystery" Koko dotes on three fake apples, a painting of robins and a glove box. Qwill's friend at the book shop dies from ill health and his book store is burned down by arsonists. The local boarded up mines are also victims of arson. A man who just came to town tries selling books at outrageous prices. A young man who was sort of new to the area is pushed down stairs to his death at the curing rink. Qwill puts everything together and realizes the new bookseller is behind all the crime as he and 2 other men are in a Ponzi scheme to get land for condos and businesses.