Sombra Writing Prompt Contest.
King Sombra is assigning the crystal ponies to different parts of the crystal mines. A young stallion named Ivory tries to stand up to him. King Sombra, impressed with the stallion's valor, names him head regent of the Crystal Excavation Project. Viceroy Theoria, a fellow unicorn and King Sombra's second in command, doesn't trust Ivory and investigates him as a potential threat to the crown.
(Rated T for implied M/M Rape and violence) This story also links with the Helioselenian Universe, but it is not required reading to understand it.
P.S. I like to know why you do or do not like something. I want to improve, so just tell me what you think.