Infernal Depths
From Tardis Wiki, the free Doctor Who reference
After leaving the Void Between Worlds, the Greth arrived on Earth in "the Infernal Depths" beneath the sea. It had been helped in this by a "patron" it met in the Void, (PROSE: Out of the Box) the Yssgaroth; (PROSE: Preternatural Nights) some accounts suggested that a portal to the Yssgaroth's realm existed at the centre of the Earth. (PROSE: Interference, The Book of the War)
