It was actually Mathilda Ward herself who leaked the information, and Jack Clark couldn't help but admire her.
Worthy of being the Princess of the Heavenly King, even though she was unable to cultivate, her courage, insight, and vision were incomparable to ordinary people.
As for how she found out about the two avatars of the soul infiltrating their ranks, it must have been due to the "strength" she had at her disposal.
In this Era of Power Supremacy, as the Heavenly King's daughter, her status was even more prestigious than those imperial princesses.
In such circumstances, even though her life was not much longer, and she was indifferent to power, a force would still automatically gather around her.
Those people, whether they were to ingratiate themselves with the Mysterious Martial Sky King, or because of interests tied with the Mysterious Martial Sky King or admiration for his character, would not overlook his sole surviving daughter.