He is Nyx 's Playmate, protector and Kalona 's brother. He is described as being similar to Kalona, except for having golden wings. Erebus and Kalona are twins minus the wings part

He appears in Hidden , talking to Kalona outside the Mayo Hotel.

He appears in Revealed , once in Dragon's office and again outside Nyx's Temple  at the House of Night in Tulsa. He know dispises his brother.