I found the clue "last letter, in London" in today's NYT Mini Crossword the most difficult. You've probably wondered, like me, how to spell the letter N, after all it's the last letter in "London". But the comma in the clue tells you not to guess.

The trick here is that "last letter in London" would mean the letter "N", but "last letter, in London" with a comma means something else. Here are some hints to help you find the answer to this Mini Crossword clue by yourself.

You have to spell a letter like someone from London would.

If you tried to spell the letter "N" like "Enn" you would get it wrong.