User:SOTO/Forum Archive/The Reference Desk/@comment-165.228.133.90-20130925042257/@comment-1398253-20130926000808
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User:SOTO/Forum Archive/The Reference Desk/@comment-165.228.133.90-20130925042257/@comment-1398253-20130926000808 18 down is definitely Monk, as in the Meddling Monk. If 20 across is Troy, that was in The Myth Makers. Both stories are Hartnell's, so I can understand you not knowing the answers.