A Curse upon the Digressive Principle!

Professor Donald McQueen (Bibliographer!) tries to leave Timor Mortis College for his London club, in search of a little peace in order to continue his researches into the Codex Assinorum. But he is waylaid by a series of real and spectral visions, and gets caught up in an absurd episode of the 1970s television series The Venus Probe ...