Books like Past Tense

Josephine Short, a woman with few friends and relatives, dies in a nursing home, leaving some unusual requests. Shortly thereafter an intruder enters her room. The attending physician noticed nothing unusual, attributing her death to heart failure. The woman listed a second cousin living nearby as the next of kin on her nursing home documents. He is in the Amazon at the time of her death, and his wife, who knew nothing about the woman, must deal with the arrangements. The woman's grandson from a faraway island attends the funeral. A young nurse who attended the funeral is found in the river soon afterwards. Then the old woman's grave is disturbed. Inspector Sloan and Constable Crosby try to make sense of mysterious circumstances which must be linked--but how? It's an interesting puzzle. My hunch was correct, but even I doubted my own conclusions from time to time. I listened to the audiobook read by Ric Jerrom. He did a good job differentiating voices.