"I think Peter Dickinson is hands down the best stylist as a writer and the most interesting storyteller in my genre." —Sara Paretsky, author of _Breakdown_ Praise for _The Poison Oracle_: "I have no idea if any of this talk and ac-tion is authentic, and I don't care. Either way it's marvellous."—Rex Stout "Intelligent, elegantly written . . . a thoroughly enjoyable read."—_Sunday Times_ Praise for Peter Dickinson's mysteries: "He is the true original, a superb writer who revitalises the traditions of the mystery genre . . . incapable of writing a trite or inelegant sentence . . . a mas-ter."—P. D. James "Consummate storytelling skill."—Peter Lovesey Take a medieval Arab kingdom, add a ruler who wants to update the kingdom's educational facilities, include an English research psycholinguist (an Oxford classmate of the ruler) invited to pursue his work on animal communication, and then add a touch of chaos in Dinah, a chimpanzee who has begun to learn to form coherent sentences with plastic symbols. When a murder is committed in the oil-rich marshes, Dinah is the only witness, and Morris has to go into the marshes to dis-cover the truth. _The Poison Oracle _is a novel of its time that exposes in the everyday language people use humanity's thinking and unthinking cruelties to one another and to the animals with whom we share this earth. PETER DICKINSON has twice received the Crime Writers' Association's Gold Dagger. His novels include _Death of a Unicorn_, _A Summer in the Twenties_, and many more. He lives in England and is married to the novelist Robin McKinley.