And After Such Knowledge

I should have said six volumes here. After Such Knowledge, which has been collected in a single volume (see image), begins with the discovery of scientific method by Roger Bacon in Doctor Mirabilis and climaxes with an unexpected outcome of the supernatural conflict of Armageddon in The Day After Judgment.

Schematically, Black Easter and its sequel, The Day After Judgment, considered as a single work, comprise Volume II of the After Such Knowledge Trilogy with A Case Of Conscience as Volume III. In this order, the three volumes correspond to past, present and future, respectively, and also form a Hegelian triad of historical fiction, fantasy and science fiction, sf synthesizing the realism of historical fiction with the counter-factuality of fantasy.

However, Volume II, written last, is surely a dramatic climax, realizing the apocalyptic apprehensions of Volumes I and III?