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.

The Scotland Outdoors podcast from BBC Radio Scotland.

What is a tidal pool but a cage and aviary with permeable walls?

A volunteer zoo, into which life will come if the conditions are congenial,

but leave when the tide floods and the walls become irrelevant.

Not a place that preserves what is already there,

but a frame to encourage the assembling of life,

in whose linkages and interstices the functions of life might find a home.

Adam Nicholson, reading from his book, The Sea is Not Made of Water. Now, he'll explain the title

shortly. This book grew out of his fascination for rockpool, so much so that he actually

built some himself. Nothing in it would be mine.

Its boundaries would be both open and closed,

alternating with the tides, twice a day, breathing like that,

drawing organisms in, holding them, releasing them,

depending on the sea to give it life. Making the pool was a kind of gardening,

...