Kraken (Unnatural History)
From Tardis Wiki, the free Doctor Who reference
The Kraken was a species that originated from a higher dimension. Kraken were big enough to flatten San Francisco. They could be found floating in the void where they twisted themselves through almost incomprehensible space. They fed on exotic matter, plumes of raw cosmological power, as well as fountains of energy from the upper reaches which were undetectable in normal space. (PROSE: Unnatural History)
The Kraken were among the predators in the vortex, along with the Chronovores and the Swimmers. (PROSE: The Shadows of Avalon)
