He tells her that she will be sent to France as a secret agent, and if she's caught, she's going to be shot.

I'm Helen Obalam Carter, and this is history's secret heroes, where I shine a light on extraordinary stories from World War II.

What they wanted was someone to get themselves arrested and sent to Auschwitz.

Tales of deception, an incredible acts of resistance and courage.

She was a born soldier.

She's a freedom fighter in its widest sense.

The brand new series of History's secret heroes.

Listen first on BBC Sounds.

BBC Sounds, music, radio, podcasts.

Imagine that you're a German soldier, and it's night, and it's chilly out, and you have your coat on,

and you're walking home from your watch.

It's 1943. For the last three years,

the Nazis have occupied the Channel Islands, a string of islands off the coast of Normandy.

For the Nazis, Jersey, a British crown dependency, feels like the first step towards the eventual conquest of Britain itself.

You walk back to the house where you have been billeted.

A grand old place right on the beach.

The surrounding cliffs glow eerily white in the dark.

And you pull off your gloves and you reach into your pocket

and you pull out a piece of paper that you didn't expect to be there.

And you open it up and on it is a poem.

You know the poem well. It's about the German legend of Lorelei, a siren on the banks of the Rhine,

who lures river-going sailors to their deaths with her song. But as you start reading this poem,

...