A quiet walk through an abandoned prison camp in darkness, late night ambient sound in the Maasai Mara - Josie Long listens for sounds in the hush of the night.

Silent Night
Featuring Carl Cattermole
Produced by Thomas Glasser and based on his documentary for National Prison Radio, Sounds Inside

Crickets - Night - Maasai Mara
Produced by Jonathan Zenti

Ambient Sir
Featuring Jordan Scott
Jordan Scott's writing can be found at his website Lanterns at Guantánamo
Produced by Jess Shane

Series Producer: Eleanor McDowall
A Falling Tree production for BBC Radio 4.