Lord Selnikov first appears as a co-conspirator of Princess Anevka Sturmvoraus. He is a member of the Knights of Jove, re-purposed to supporting the return and success of their Mistress aka the Other aka Lucrezia Mongfish. Anevka orders him to ensure the deaths of all the theater attendees who imprinted upon Agatha's voice when she was performing on stage in the palace theatre. He was later consulted by Boris over the existence of the Spark infecting wasp that may have been used on the Baron.