The Upas Tree, legend has it, is an African tree that alters the psyche when one sleeps under it, as protagonist Ronnie West did when doing experiential research for his next romance novel. As a result of this indiscretion, Ronnie became somewhat manic, confused, sleepless and, according to his wife, Helen, "utterly, preposterously, altogether selfish." This strange tree and additional elements, such as 13 foot-tall African grasses, a purloined letter,...