Jenni visits the Sexual Offences Investigation Team in Hertfordshire to see how they deal with allegations of sexual violence. A young woman talks about her experience of immediately reporting being raped to the Police. Plus we hear from Deputy Assistant Commissioner for the Metropolitan Police Martin Hewitt about his concerns as national policing lead for sexual offences at Association of Chief Police Officers (ACPO).

Martha Fernback was 15 when she died after taking half a gram of MDMA. That was 5 months ago. Her single mum buried herself in writing as a way of channelling her immense pain as she mourned the loss of her only child. Her outpourings have now been published, and her book 5,742 days - the number of days Martha lived - documents her agonising journey. Anne-Marie Cockburn talks about her daughter and the positivity that's helping her face the future.

We visit Polesden Lacey near Dorking in Surrey to experience an Edwardian Christmas. The house was the country home of the fabulously wealthy heiress, Margaret Greville, who'd married Ronnie, the eldest son of Lord Greville. Margaret was widowed young, but as 'Mrs Ronnie,' she became the confidante of royalty and hosted lavish Christmas house parties.

And with Boxing Day just a week away it's time to open the latest window in the Radio 4 Advent Calendar - it's Sandi Toksvig. Show less