
Rat King in his lair, discovering April has escaped.
The Rat King's lair is the hideout of the Rat King in the 1987 TV series. It is located at an abandoned subway station beneath Manhattan, and first appears in the episode Enter the Rat King where he kidnaps April O'Neil. In Leatherhead Meets the Rat King, he mixes chemicals there trying to release his zombie gas.
In Were-Rats from Channel 6, the Rat King kidnaps Irma and Vernon to his lair, and try to mutate them into humanoid rats.