The Horror of Howling Hill was a Decide Your Destiny book released in 2008.
Publisher's summary Edit
Join the Doctor and Martha on their travels through time and space and influence the story with your decisions. Choose a direction and let the adventures begin...
Help the Doctor and Martha discover the truth behind the legend of Howling Hill, before the horror that stalks the night catches up with you...
- This is the last Decide Your Destiny book featuring the Tenth Doctor.