Enigma Page #5

And this time,|we don't know where.

And one golden rule--|absolute radio silence.

- And wh-- wh--|- What then?

Either the convoy is lucky and misses|the ambush, or it isn't lucky.

And the fiirst U-boat to make contact|with the convoy breaks radio silence.

-How?|-Minimally, using the short signal book.

It compresses the necessary information|to a few letters--

sighting of convoy,|position, course and speed.

That's repeated every two hours.|As it's picked up by the other|U-boats in the line...

they start to converge on the convoy|and send a contact signal in their turn.

Contact signal.

They'll shadow|the convoy till nightfall.|They prefer to attack in the dark.

We haven't got as much time|as we'd thought. I'd say, a day,|a day and a half at the outside.

- Mary Jane Hawkins.|- The oracle has spoken.

They changed the weather code,|but they didn't change|the short signal code book.

It's our way back into Shark,|so long as the U-boats fiind our convoy.

Don't you see?|It's our convoy.

We know what the U-boats|are sending. It's the crib|that we've been looking for.

- Would you get enough material?|- How many signals do you need?

One group of letters|for the convoy sighted...

two groups for grid reference, one group|for course, one group for speed.

Five groups of letters|per contact signal every two hours.

Shadowing the convoy for maybe 10 hours,|12-- that's 25 groups of letters.

And how many U-boats joining in?|Eight, ten?

Each one a contact signal|every two hours.

My God, he's right.|He's found us a crib.

- Brilliant.|- A-A-Appalling.

We've never had an operation on this|scale. The contact signals could easily|build up to give us a crib...

of 100 group of letters|and we've got the short|signal code book in the museum.

He's right, Guy.

Where are the keys to the museum?

Good Christ, Tom. We have to protect|the convoys, not sacrifiice them.

You know what it's like out there.

The success of this plan|depends on arranging a massacre.

No. No, we are not arranging anything.|What happens is going to happen.

But if we can use it to|our advantage, we'll be able|to decipher every signal...

sent by every U-boat|on the high seas for 24 hours!

- Including the weather reports.|- Yeah. We'll have the plain text.

We can make a start on reconstructing|the new weather code.

- This puts us back in the fiight.|- And there will be many more|convoys to protect.

You're back in business,|old thing.

Garbled text from Beaumanor.|Somebody get on the blower.

Miss Chamberlain, would you?|Get them to check their fiile copy.

Pam, does Beaumanor keep copies|of everything they send us?

- Yes. It's all there on fiile.|- Thank you.

Hello. Could I have Beaumanor 392?

Miss Wallace!

No female visitors upstairs.|That's the rule!

Mr Jericho, wake up.|It's not over.

- We need to borrow your Enigma machine.|- Didn't you hear?

Top copy goes straight to|your people by teleprinter...

or by dispatch rider,|depending on priority.

The second copy we keep,|in case of garbles.

Can we see?

Well, if you want.|There's not much to it.

It's a treat for us,|you know, a visit from head offiice|to the country cousins.

It's good of you to say so,|but, um...

a fat lot of use we'd be|without your intercepts, Major.

We keep them a couple of months,|fiiled chronologically.

These sets are tuned to the|Eastern Front-- Kestrel, Buzzard, Kite.

- And you're intercepting everything?|- Absolutely.

Except that time|the other week, of course.

Kestrel, wasn't it?

Yes, your Miles Mermagen came|on the blower in a frightful panic.

''No more ADU, thank you very much.|Not now, not ever.''

- What's that about?|- Orders from above.

We'd just sent him|four good, clean signals.

It was Kay here who handled|our mystery station.

Carry on.

Yeah, he has a good fiist, ADU.|Touch like a concert pianist.

He's still transmitting?

Of course, I don't take him down any|more, but he was awful busy last week.

Oh, excuse me, sir.

What was it you said|you did again, Mr--

-Jericho.|-Jericho.

Can't say, I'm afraid.|Catch you up.

- Major, how many machines|did you say you have here?|- We have 48 here.

Excuse me.

He's on now,|if you're interested, sir.

Thank you.

I don't mean|to bother you, sir...

but it is important,|isn't it?

I know I shouldn't ask.|I mean, no one ever tells us.

You are making sense of it?|It is important?

Yes.

This is our only war, you see,|in here-- beep, beep, bloody beep.

And it's always nonsense,|nonsense, nonsense.

Yes, we are|making sense of it...

and it is important.

Eleven ADU signals|and launchings.

That's the car.|Man, woman, two-seater roadster.

Invite him to stop, shall we?

Take him, man! Take him!

Mr Jericho, stop! Stop! Stop!

Look out!

Sh*t.

Bravo, Mr Jericho.

Reckon, given the circumstances,|Miss Wallace...

we might now risk|fiirst names.

Hester.

Tom.

This might be good.|It looks deserted enough.

Well spotted.

Bliss.

- What would they do to us if they knew?|- Feed us to the dogs.

Charming.

Right.

March and April|Beaumanor log sheets...

and the intercepts|from March 28th...

April 3rd, April 9th,|15th, 16th, 17th...

and Kestrel settings--|last one fiirst.

Might tell us|why Claire disappeared.

Right. April 17, rotor order.

R-X-O.

- Plug board settings.|- A-O-E-M.

The current passes|from the keyboard...

to the lamps by way|of the rotors and the plugs.

And every time you press a key,|it changes the path of the current.

Press the same key ten times,|it comes out ten different ways|on the lamp board.

You never know which letters|will light up. Simply brilliant.

Message key X-A-T.

- Ready?|- Ready.

- ''Y.''|- ''K.''

- ''E.''|- ''A.''

''W.''

''C.''

- ''U.''|- Zed.

''M.''

''V.''

- ''Q''|- ''X.''

It's not right, is it?|This isn't German.

Keep going. Sometimes the operator|pads out with nonsense.

Keep going.

- Um, ''K.''|- Zed.

- ''E.''|- ''R.''

- ''O.''|- ''A.''

- ''F.''|- ''D.''

Isn't German.|Come on, genius!

I'm sorry. It's double coded,|or the settings must be wrong.

It's all been for nothing.

I'm afraid I have to ask you|to hurry up.

Search the barn.

This is Mr Leveret.|Detective Inspector Leveret.

He wants to know what you've been up to.|But fiirst things fiirst.

You've been here before?

And you?

Line up in the street|and search the area.

Have a look at this, sir.|It's down there.

- Right, sir.|- There?

Drag the river.

Please talk to me! What do you want to|know? I'll tell you anything you want.

Give me your hand.

Do you wanna know about Shark?|Any secret. Ask me!

Come this way.

I've got something to show you.|Get your notebook out.

Miss Wallace fiirst.

I am showing the witness|one ladies' coat, colour grey...

trimmed with black velvet.

Label:
Hunters, Burlington Arcade.

- And the witness responded--|- Yes. It's hers.

Yes.

Next, one ladies' shoe...

black high heel.

Uh, heel snapped off.

And the witness responded--

Yes.

It's an old quarry.

They built the town|with what they dug out.

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