Midknight was a group of several powerful individuals that served as the top of the island of Ichor's government.
Each of the members of Midknight are assigned a number, 1-9. Each of the members except for one of them are from the island of Ichor, an exception was made for that one member simply because her mother was born in Ichor. Each of the members have a tattoo of the group's symbol on their back, with their number on the symbol. The members of the group are often referred to as "Hydras", due to the symbol of Midknight resembling a Hydra, which stems from the town that Marek was born in, Lerna.