195 Masquerade part one

“Once upon a time, there was a world divided. By day, it was just like your world. The residents woke up, they went to work, their children went to school. They walked the streets and played in the parks, and everyone was safe. But come sundown, they retreated into their homes, and locked their doors, and went to sleep, and tried not to think about the outside world. Because once the sun went down, it belonged to them. They walked the streets and haunted our parks. And their children went to their schools. And when the sun rose again, they retreated below ground, and locked their doors, and went to sleep. And tried not to think about whom they shared their world with.”
“Sounds like a strange place. What was the planet called again, Doctor?”
“It was called Earth, my dear.”
You are cordially invited to the wedding of the Night-King Orlock to Queen Catherine of the Hadaratti. It should be a joyous occasion. But as the hour draws near, darker motives reveal themselves. Why does the King’s brother seem surprised that the wedding is going ahead? Who are the blue-skinned guests with the strange taste in scarfs? And where is Antoine?
As the Doctor and Georgie quickly find themselves in over their heads, secrets will be revealed. And for the crew of the TARDIS nothing will ever be the same again.