The Vashta Nerada was a "alien lifeform" from 2 episodes in Doctor Who. They live in forests, but when their forests were cut down, pulped and turned into books, the spores of their offspring were released from the books and they hunted and killed those in the Library.
Sorry, lol, long explanation. But a good episode. (2 parter.)
Sorry, lol, long explanation. But a good episode. (2 parter.)
**blushes and shows off her geekiness**