novel: THE HOLLOW MEN
I'm not a big fan of the 7th Doctor or Ace but there are some cracking good TV stories with them and some really good novels and audios too. This one by Keith Topping is tops. It has a sequence with a scarecrow that really chills. In a book! Well I got chills from reading the original AMITYVILLE HORROR book, not a true story by any means but a well written scary book nevertheless. That sequence with the scarecrow chasing Ace and Steven Chen through a graveyard as they try to escape a church. That image alone is enough to recommend this strange Lovecraftian tale.