The palace surroundings were deserted, which was quite convenient for Xiao Yifeng.
He quickly landed beside the palace. He cast a layer of mist to shroud his body, making him seem nonexistent from afar, though anyone approaching would see through the illusion.
Focusing his hearing, he indeed caught the sound of a man's heavy breathing and a woman's pained gasps. The Crown Prince was indulging in debauchery in broad daylight.
Whoever the Crown Prince was favoring, it was someone he needed to keep secret, clearly someone disreputable.