The Jersey Devil
The Jersey Devil is the Super Ghost of Southern New Jersey, specifically in the pine barrens. It was a normal human baby in New Sweden in 1749, before being corrupted by Sir Walter Raleigh Requiem and turned into a half baby, half demon bat that would kill unlucky travellers in New Jersey. It didn't directly serve the Friendly Council until 1980 after Teshub invited it to a Bruce Springsteen concert and convinced it to join the cause.