Bone spider
From Tardis Wiki, the free Doctor Who reference
Bone spiders were sentient creatures, which could make dreams, memories and fears tangible, down to the smells. They could not distinguish between good dreams and nightmares. They could create a thin layer of web around a person that would make them invisible to others without obscuring their own vision. Their spiderwebs could also be visible and as thick as football socks. They could also create stone version of other beings, which would collapse upon being touched by a living being.
A female spider fell through a tear in space-time and lived in Alice Parsons' house. In 2015 she gave birth to a baby. (PROSE: The Stone House)
