Creator - S

Sacre Ordo = A Chapter of Adepts dedicated to mastering the life sciences. For more info see Sacre Ordo. 
Sator Square = A mysterious word-puzzle found in the ancient world, is believed by some to be a call to hard work (see Here) and by others as a symbol of the early Xtrians (see Here).
Siren = Supernaturals who can sing any number of bewitching songs, they are natural allies to the Creators. For more info see The Siren.