Frost Mage Class Event problem?


I’m feeling like an idiot here, but there’s something I’m missing with the current Frost Mage Class Event. Specifically the part where the overview screen wants me to complete a quest to unlock the class. I’ve been to Glacial Peaks & completed the new events (# of events in the Kingdom now reads 28/28), so what further quest is it referring to? Is it perhaps asking me to level up the Kingdom to 10? Any help would be appreciated (embarrasing, but appreciated).