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OTTF? is a puzzle in Professor Layton and the Curious Village. For the puzzle in the European version of the game, go here.

## Puzzle

Here you have a set of small paper cards. On each card is a single letter, but one of the cards is missing its letter. What letter belongs on the blank card?

## Hints

Click a Tab to reveal the Hint.

If you're guessing that there's some order to the way the cards are lined up, you're absolutely correct.
Think about what series of things could be represented here.

How many cards do you have there? Ten, right? That's a bigger hint than you think. Look closely at which card is blank.

As odd as it may seem, all the knowledge you need to solve this puzzle you probably had from the day you stepped into first grade.
It's safe to say that it's one of the first things you ever learned.

## Solution

### Incorrect

Nope.

Look for a pattern or rule that applies to this arrangement of letters.

### Correct

That's right!

The letters written on the paper correspond to the first letter in the numbers one through 10.

A big thanks to http://professorlaytonwalkthrough.blogspot.com