Written and illustrated by artist Kit Williams, Masquerade is a series of fantastical images-such as the sun dancing with the moon-that contained clues to the location of a real-life treasure buried somewhere in England: a golden rabbit about the size of a paperback book and worth several thousand pounds. This gorgeous 1979 British book kicked off the era of the modern armchair treasure hunts. Kit Williams And Frank Dunlop / Graham Turner/GettyImages