Kingdom of Beasts
The Kingdom of Beasts (PROSE: The Adventuress of Henrietta Street) was the alter-time realm where the Mal'akh came from. (PROSE: The Book of the War) It appeared as a bleached, white, mirror image of Earth, with ruined and dusty replicas of locations in London. (PROSE: The Adventuress of Henrietta Street)
Lord Byron visited the realm of the Mal'akh during the Maltese incident in 1809. He described it as a horrifying landscape, where he and his companions were assaulted by giants. (PROSE: The Book of the War)
After the Eighth Doctor killed the King of Beasts, the Kingdom was closed off from the rest of the universe. (PROSE: The Adventuress of Henrietta Street)