From The Enigma
NPL Magazine - Sept. 2011
LIRATH

[The two words that answer this flat differ by only a single letter.]

Entirely on a lark,
He broke into St. Mark's.
He stole a cross of gold,
And chalices I'm told.
Quite quickly he was caught.
The pastor said he ought
Not ever show his face
Again within that place.

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HINT:
St. Mark's is a         _ _ _ _ _ _.
The thief is now a   _ _ _ _ _ _.

Answers:

PARISH
PARIAH