<p>This article is a two-part essay rather than a review in the strict sense. It is structured using the expository form of a musical fugue. Andreas Philippopoulos-Mihalopoulos’ book “Hydrojustice” is examined in its salient argumentative passages through the development and sequential presentation of a counter-voice, which is precisely that of the author of the article. The overall aim is to accompany the reader in consulting the book “Hydrojustice” through an analytical-critical path. The essay is designed to produce, through argumentative inversions and diversions, a final theoretical convergence suitable for proffering the reader a third semantic dimension definable as ‘aqueous law.’ The hoped-for goal is that it will hover, in the reader’s eyes, between Mihalopoulos-Philippopoulos’ theory of hydrojustice and the author’s category of legal hydroaffordances.</p>