Fractured Friendships

When the villains were rounded up and thrown onto the isle, no one expected that they would have children. 9 years after they were put on the isle, Auradon rounded up all of the children from the isle and relocated them to Auradon. Two villains knew that this was coming and prepared for it by hiding their children and were able to avoid the raid. Carlos, child of Cruella de Vil, and Mal, child of Maleficent. What happens when the heroes figured out 8 years later? What happened to the children that were forgotten? And what happens when they reunite with their old friend?