When Rollie finds a letter in his great aunt's study questioning his decision to attend Sherlock Academy, he confronts her and finds out that his aunt can be just as determined and stubborn as he is about keeping secrets. Aunt Ei's secretive manners aren't the only mystery brewing: an agent from Scotland Yard and Wesley arrive at Rollie's house for protection, having just barely escaped from the clutches of Herr Zilch's henchmen.