A baby monitor which opens up a terrifying world, an explorer who ventures into the unknown and a woman who longs to disappear into space - Josie Long hears about dreams, desires and darkness in unmarked territories.

On old maps, the uncharted areas - dangerous or unexplored landscapes - used to be marked with illustrations of sea serpents rising from the water or dragons stalking the land. Sometimes these areas would just be marked with a phrase, 'Here Be Dragons'. In this programme, Josie hears tales of modern exploration - from space travel to the insides of our bodies, from night terrors to new worlds.

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

The items featured in the programme are:

Baby Monitor Produced by Peregrine Andrews

Dangerous Appetites Feat. Joe Dunthorne

The Blue Nile Feat. John Blashford Snell

The Call Produced by Rikke Houd with Sheida Jahanbin.