Rick thinks he's headed to collaborate with one of this favorite authors in Castle Season 8 Episode 12.

Instead he ends up locked in a room with four other people forced to work out mysterious puzzles.

Who is behind this strange abduction and can Castle solve the game before it turns deadly for one of the players? Will Beckett be able to help?

Be a part of the mystery. Watch Castle online any time here at TV Fanatic and catch up on anything you may have missed.

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C. Orlando was a TV Fanatic Staff Writer. Follow her on Twitter.