Legend has it that the Kingdom of England will fall if the resident ravens permanently desert the Tower of London. So when the birds disappear a brave, young traveller sets out to find them, that is, until she, herself goes missing. The only trace of her is her backpack containing a map of contemporary London showing well-known buildings, streets and the places to visit along with 28 verses plotting the route taken by the girl before she went missing.Did she ever find the birds? Solve the cryptic clues and follow her route to see if you can unveil the secret hiding place of the runaway birds and save England from disaster. There's also a 14-page booklet packed with fun quizzes and an essential London fact file with fascinating facts about the city both past and present.