Smallville competition.

Win a copy of the Smallville Yearbook.

We've got five copies of the new Smallville Yearbook to give away this week - each a hundred pages-worth of cast and crew interviews, behind-the-scenes features and pictures of Tom Welling looking gorgeous.

And, for the first right entry out of our cyber-postbag, we'll chuck in five Smallville novels - including one by acclaimed British comics writer Alan Grant.

All you have to do for a chance to win is answer the simple question below.

What colour of kryptonite causes Clark Kent to turn into a bad man?

A. Green
B. Blue
C. Red

Don't forget to check the Rules first.

So, tell us the answer.

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Your name:

Enter your answer:

Enter your postal address:

We need this to send you your prize if you win!

And what age are you?

Your personal information will only be used by the BBC for the purposes of administering this competition.

• Smallville Yearbook Tom Welling interview
  

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