Still feeling spooked from episode 4? Channel your fear into a story with this week's writing challenge, just in time for Halloween!

What is your biggest fear and how does the Thirteenth Doctor help you overcome it? 

Leave us a comment and we'll feature a selection of stories on our profile. Some thought starters:

- What is the fear?

- How does it manifest?

- What does the Doctor do to help you overcome it?

Submit your stories by Friday 2nd November at 11:59 BST.

The fifth episode of the new series will air Sunday 4th November.