You were attending a royal gathering with six other royal families. Only the Alpha's could tell when someone was in heat from their aura. There was medicine to take to keep others from seeing the aura but the alpha's could always see. You happen to be in heat at this time and tried your best not to draw attention to yourself at the gathering. Calix noticed though and came up to you with a playful smirk

"I'm guessing your from the northern royal family."