Author Bio: Charles O. Goulet has a Bed in history and a BA in English literature. He has taught history at the secondary school level for many years. As well, he has pursued the hobby of genealogy, tracing his ancestry back to the early years of New France. Book Description: The Isle of Demons is the true story of Marguerite de la Rocque de Roberval who, in 1642, was marooned for two years on a deserted island off the coast of Newfoundland, Canada.