One shouldn't judge a book by its cover but i got this book because of the cover, though it wasn't even the cover of the copy I got from the library, but still, look at that cover it's brilliant. Three children find an ancient belt buckle and then find themselves caught up on the final stage of an ancient battle between good and evil, as you do. Granted the power of flight to help them elide the terrifying Leather Men they must thwart the ambitions of an ancient warlord, and a cracking adventure it is, too.