Duke Thales has been in a bad mood lately.
According to a well-informed insider from Castle Star Lake, belonging to the Candor Seven Servant Families, who wishes to remain anonymous (for the sake of protecting the individual, let's call them B.B.), the Prince has been listless during meals, distracted in class, overexerting himself during martial training, lost in deep thought, occasionally isolating himself, zoning out, and even occasionally heaving a sigh, lamenting the vicissitudes of life.
As for the reason, there are a variety of speculations within Castle Star Lake. Some say it's the frustration and sorrow following his exile, others think he's had another argument with Officer Maillot, and there are those who speculate it's because the Logistics Wing's accounts have looked grim in the past few months. However, our reliable informant B.B. (pseudonym) by Prince Thales's side provides the most direct reason: