"Barbara Gold, a retired CIA agent, is bored out of her skull in Cheerville, a small town in New England--until a man is poisoned during a book club meeting for seniors. Everyone thinks Lucien had a heart attack, but from his symptoms, Barbara knows someone has slipped poisoned into his cake or drink. Even though she is no longer under cover, Barbara feels as if she's only playing the part of a sweet grandmother, but this may just be her most useful...

Juan Gutierrez, a cancer researcher, has spent years studying the genome of animals that exhibit immunity to some types of cancer. Over the course of his study, Juan discovers a pattern that allows him to predict the course of a species' evolution across thousands of generations. Using the algorithm he's developed from the pattern, Juan uncovers what he believes to be the key to conquering humanity's susceptibility to cancer. Others are interested...