Revelation is a mysterious and intriguing book. It talks about a slain lamb, which is also a lion, seven angels blowing trumpets and pouring out pestilience on the earth, Dragons, Horseman, Drunken women and grotesque beasts. We are not to be distracted, though from the central theme - that all in heaven and earth will be worshipping and singing praises to one who sits on the throne and to a lamb who has triumphed over evil. You, too, can unlock the drama.