A. J. Wentworth is a man with the unshakable conviction in the correctness of his own actions. Thus, when the book he threw across the classroom stunned Hopgood II in error (Wentworth was aiming at Mason), the assistant headmaster of Burgrove prep school decided to make his notes available to the public. Truth about the insolence of Mason, the affair of the Headmaster's fern, and other revelations throw much needed light on the incident of the heaved algebra book.