There is a code for every occasion in this b ook. Young readers can find out how to invent their own sets of secret signals and how to scramble messages in countless different ways. '
Beginning with early Britain and the buildin g of Stonehenge, this book takes the reader on a journey fro m the Crusades and the Black Death through to the golden age of the Tudors and Stuarts. '
This addition to the Usborne Hotshots series presents background information on the earth, the different types of rocks and how they are formed, volcanoes and earth quakes. '