Mark Gatiss has confirmed he has just finished writing an episode for Season 35 of Doctor Who.
The actor and writer told The Daily Telegraph, the script had been difficult to finish.
It has been a tough nut to crack, but I’m delighted with how scary it is. I can’t say any more than that.The script will be Gatiss's eighth story for the series, his most recent one being last year's Robot of Sherwood
Season 35 - Series 9 Guide