of his opponents. Woodhouse's descriptions show the sort of attention to technical detail that would be expected from his work as an engineer for the RAF. Tree Frog (1966) – This is a novel about the 1960s cold war arms race to develop long-range reconnaissance drones. The action takes place in many locales, but much of it is set in Britain and Libya. The book's descriptions of aircraft control systems are clearly informed by Woodhouse's real life work on the target acquisition and guidance systems for early variants of the RAF's Bloodhound SAM. Bush Baby (1968) – This novel focuses on seismographs that England has illegally deployed in east block nations to try to gain information on nuclear tests. Yeoman must track down some of this equipment in the mountains of Yugoslavia to see if it has been discovered and modified to send false data. Published in the United States as Rock Baby. Mama Doll (1972) – Contemporary with The Terminal Man, the novel explores advanced brain surgery, and how electronic implants might be used to influence behaviour. Yeoman, himself recovering from a head injury, uses his knowledge of electronics as he tries to track down a missing cache of weapons. Blue Bone (1973) – The plot revolves around a scientist who is being held against his will in East Germany because he will not reveal the details of a new high-strength composite plastic he has created. Yeoman is sent in to rescue the scientist, and his engineering background allows him to devise a creative MacGyver-like method of escape. Moon Hill (1976) – A now wealthy Giles Yeoman tries to develop a technology to prevent a volcano from erupting and destroying a city. Again, Woodhouse – who was living in Montserrat while writing the Medici books – draws plot elements from his personal experience. Leonardo da Vinci Woodhouse and co-author Robert Ross wrote three novels about Leonardo da Vinci. They focus on his work as a military engineer in the service of the Duke of Milan. Leonardo is depicted as a clever, sarcastic Italian Renaissance engineer who doubts the supremacy of the Catholic Church. Many details in these books are historically based, but large portions of the stories depend upon ideas from Leonardo's sketch books being developed into functional machines. This places the novels in the alternate history or Steampunk genre. The Medici Guns (1974) – Leonardo develops and oversees