I honestly want to know what would happen if they just... told everyone. What the king has done. You dont even need to include the summoning, just say "The King kidnapped 3 children and forced two of them to be the heroes. The main hero he put a slave bracelet on in exchange for letting #3 leave, only to send assassins after him anyway. He has since attempted to use the heroes as assassins to kill a peaceful neighboring monarch. Upon #3 returning with an item the king needed, and the king saying he'll grant ANY wish, after #3 asked for his friend to be released from slavery (And 90% of the court agreeing with him) The king said no, and attempted to send #3 to his death, interrupting a profitable business for the kingdom in the process"
Like, the heroes are supposed to be national celebrities, and the king already isn't popular. What would the general population do if they found out the king has done all this to well loved heroes?