Dimitri was concerned after hearing that Lily had been attacked calling in his second, he informed him about the attack on his mate. "While she hasn't voiced it herself, the incident today could have triggered something. Many thought you would avoid mating altogether even the nobles who sent candidates."
The list of possible suspects was growing, but the one that stuck in his mind was the Wolf Clan Royalty. They stand to lose the most if they can't convince Lily to change her mind. He doubted they could with their history with her. He knew his mate didn't tolerate people telling her what to do.
