* AuthorExistenceFailure: Right before the last book. Damn.
* GoddamnBats: The dark powers' main shock troops are venomous Harpies, which attack in seemingly endless waves. (All it takes is one getting through and administering a bite, and it's lights out).
* NeverLiveItDown: Jim made the mistake of introducing himself to Carolinus as a "Master of Arts" (his title as a college graduate). This term means something ''much'' more prestigious among Magicians, and Carolinus has never let him forget that little slip-up.