Source: Dance of the Damned, pg(s). 69
The Scarlet Sign is one of the most insidious cults that lurks within the city of Vyre. It was founded by the vrolikai demon Vissagho centuries ago as part of some sinister scheme but now serves as a secret society for nobles from across Cheliax who wish to maintain some sort of political influence in the City of Masks. The Scarlet Sign is based out of the abandoned Cathedral of Abadar and is left to its own devices by the powers of the city. What Vissagho's ultimate plans for this strange cult actually are remains a mystery.