Black Knight
Black Knight (Checkmate HQ) (Prime Earth)
General Information
Official name: Black Knight
Checkmate Headquarters
First Appearance: Grayson #4
Galaxy: Milky Way
Planet: Earth

The Black Knight, also known to be Checkmate Headquarters (HQ), is the headquarters of the espionage organization known as Checkmate.[1][2]


Infrastructure is currently unknown.


  • No notes


  • No trivia


  1. Grayson #2
  2. Grayson #9

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