After the bonfire finally burned down, Wolfe and the King's advisor retired for the evening, intending to take some time to properly relax after a day full of unwanted excitement.
Being attacked by crusaders definitely wasn't on the to-do list for the day, and the King had plans for Wolfe before he left. There was a lot of magical knowledge here, and the more that the Patriarch knew, the more helpful he could be the next time they were having an issue or needed something specific made.
That would also help the other Kingdoms, and improve the Ancient King's reputation among his peers. That good reputation would help smooth over the transition to the next generation so he could retire without worry of his neighbours making things difficult for his successor.
Sure, it was self-serving, but there was no loss to anyone involved, so there was no real reason not to do it.