Ever since there's been regents for young rulers, I have been suspicious of these people who supposedly have the young king's interests at heart, but always seem to end up scheming to usurp the throne and claim it for their own. Throw in a member of the King's guard who is not on the best terms with this dude, also very suspicious. Finally add a extinct dragon (maybe not so extinct) and a rescued witch in training and just about anything could happen. What an adventure!