We go back to Byron Bay. What is it about the seaside town and surrounding hinterland that lures so many? We speak to experts about the reasons people go missing and look into the attraction of cults.

Most of the music for The Lady Vanishes was composed by Nicolas Gasparini at thedarkpiano.com with additional tracks by Mattia Cupelli at mattiacupelli.com and Jason Shaw at audionautix.com

See omnystudio.com/listener for privacy information.

As we add final touches to episode 6, we're busily investigating some of the leads you - our listeners - have given us.

In our first bonus episode, The Lady Vanishes team delves deeper into the mystery disappearance of Marion and addresses some of the case’s more intriguing anomalies.

See omnystudio.com/listener for privacy information.

A call to Crime Stoppers and mysterious social media messages from faceless strangers. Does someone know the truth? Sally's ongoing battle with bureaucracy as she chases answers in her hunt for Marion.

Most of the music for The Lady Vanishes was composed by Nicolas Gasparini at thedarkpiano.com with additional tracks by Mattia Cupelli at mattiacupelli.com and Jason Shaw at audionautix.com

See omnystudio.com/listener for privacy information.

Episode 4: Taken

We reveal the startling new evidence that puts in doubt the assumptions of family and the police about why and how Marion vanished. We also examine the how the police investigation is at odds with Sally Leydon’s belief that her mother was taken – either by a person, a group or some other foreign influence. From the moment she was reported missing the police determined Marion had simply decided to walk away from her children, her friends, her career and her possessions. Is it time to consider an alternative scenario?

Most of the music for The Lady Vanishes was composed by Nicolas Gasparini at thedarkpiano.com with additional tracks by Mattia Cupelli at mattiacupelli.com and Jason Shaw at audionautix.com

See omnystudio.com/listener for privacy information.

It was a dream job for a passionate teacher at a prestigious Gold Coast school. But then, everything changed. What happened to make Marion suddenly want to get away?

Most of the music for The Lady Vanishes was composed by Nicolas Gasparini at thedarkpiano.com with additional tracks by Mattia Cupelli at mattiacupelli.com and Jason Shaw at audionautix.com

See omnystudio.com/listener for privacy information.

Her life. Her loves. Would she leave it all behind?

Most of the music for The Lady Vanishes was composed by Nicolas Gasparini at thedarkpiano.com with additional tracks by Mattia Cupelli at mattiacupelli.com and Jason Shaw at audionautix.com

See omnystudio.com/listener for privacy information.

In 1997, Marion Barter boarded a plane for England for the trip of a lifetime. Instead, her loved ones never saw her again. What happened? Where is she? Marion’s daughter will never give up trying to find her.

Most of the music for The Lady Vanishes was composed by Nicolas Gasparini at thedarkpiano.com with additional tracks by Mattia Cupelli at mattiacupelli.com and Jason Shaw at audionautix.com

See omnystudio.com/listener for privacy information.

A much loved mother, teacher and friend steps on a plane for an overseas adventure and is never seen again. Marion Barter, the former wife of Australian soccer great Johnny Warren, went missing in 1997. The circumstances surrounding her disappearance are bizarre. Her daughter has never given up hope of finding her. This is her quest.

Presenter and Executive Producer - Alison Sandy

Presenter and Investigative journalist - Bryan Seymour

Writer and Producer - Sally Eeles

Sound Design - Marc Wright

Graphics - Jason Blandford

Most of the music was composed by Nicolas Gasparini at thedarkpiano.com with additional tracks by Mattia Cupelli at www.mattiacupelli.com/

See omnystudio.com/listener for privacy information.