In 1974, SETI (Search for Extraterrestrial Intelligence) sent a coded message into space using the world's largest telescope reflector. An answer was not expected for at least 48,000 years. But in August 2001 -- 27 years later -- a response was received. In a British crop field, near the telescope antenna of Chilbolton, two crop circles appeared. The first was a huge alien face and later, a rectangular coded message in the exact same format as the SETI message. This book takes the reader on a step-by-step, clear and compelling adventure in decoding the message from space and explains why this may well be the first indisputable evidence that extraterrestrial intelligence is trying to communicate with the earth's inhabitants. The aliens tell us about the elements important to their body chemistry, where they live and have lived, what their DNA is like, their body size, their population, their message-sending technology, and other clues which may impact our future. A new adventure in the history of mankind is about to unfold!