This is a unique POAP which unlocks if you solve part seven of the riddle. Enter the Blacksquare and get access: https://www.discord.io/blacksquare “Turning off the flame under the samovar, Kazimir went to the door, opening it. There was no one and so he closed it but there was immediately another knock. He reached out for the doorknob and it moved so that his hand missed it.”