The Horror of Howling Hill (novel)

The Horror of Howling Hill was a Decide Your Destiny book released in 2008.

Publisher's summary
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...

Characters

 * Tenth Doctor
 * Martha Jones

Worldbuilding

 * The Sycorax are mentioned.
 * The Carrionites are mentioned.
 * The Cybermen are mentioned.