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The Secret Number (The Hidden Number in the UK version) is a puzzle in Professor Layton and the Unwound Future. The puzzle must be solved in order to progress the story.

Puzzle

US Version

You've been given two keys to the Laytonmobile, but there's no keyhole in which to insert them. Instead, the door is opened by entering a secret number.

The secret number is hidden somewhere in the keys. What is it?

UK Version

You've been given two keys to the Laytonmobile, but there's no keyhole in which to insert them. Instead, the door can be opened by entering a certain number.

This number is hidden somewhere in the keys. What is it?

Hints




Click a Tab to reveal the Hint.

US Version

The secret number is hidden somewhere in the two keys.

UK Version

The number is hidden somewhere in the two keys.

You won't find it by just looking at them, though. Try moving them around!

US Version

You won't find the secret number using just one of the keys. Move them around a bit and think it out.

UK Version

You won't find the number using just one of the keys. Move both keys around a bit and give it some thought.

US Version

When you align the keys just so, the secret number will appear.

UK Version

Aligning the keys just right will make the secret number appear.

US Version

Keep the blue key on top, and rotate the yellow key 180 degrees. Touch the teeth of the keys together and...

UK Version

Keep the blue key on top and rotate the yellow key 180 degrees. Align the teeth of the keys and...


Solution

Incorrect

Too bad!

US Version

Did you try moving the keys around? You can rotate them as well. Give it another try!

UK Version

Did you try moving the keys around? You can rotate them as well.

Give it another try!

Correct

US Version

Good eye!

The secret number is 47. The numbers appear when you hold the teeth of the keys together.

UK Version

That's right!

The hidden number is 47. You can see this number when you put the ends of the keys together!

UF023S

A big thanks to http://professorlayton3walkthrough.blogspot.com

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