The novel “Wooden Heart” by Martin Day was published for the first time in 2007.

The Tardis brings the Tenth Doctor and Martha Jones to the starship Castor, which apparently is deserted. Exploring it, they realize that this is an old prison ship that now seems out of use and is drifting into space. Despite that, following what appears to be a normal corridor at one point they find themselves in a forest.

Trying to figure out where they ended up, the Doctor and Martha discover that there’s a village in the area inhabited by people who have no idea of the Castor’s existence. On the other hand, in the village the children started disappearing and some prophecies promise destruction.