The craziest one is the cover of "Head Games" by Steve Lyons, I have not read this book yet, but it is one of my favorite book covers of all time. The usually nonviolent Seventh Doctor is leering out creepily from the cover wearing his silly, yellow and blue question mark sweater is pointing a huge gun at Mel who is wearing the funky pink outfit that she wore in "Time and the Rani". You can almost hear Mel screaming, the whole thing is horrible. I love it. I think that it shows why these books to many Who fans are so appealing, you get all the fun of Doctor Who but with a much more adult feel. With the books we get to explore areas of the Doctor Who universe that you could never get away with on TV.