This book explores Xenobacillus glossophagii as a xenopoetic entity in the field of pathogenic biolinguistics, positing the bacterium not as a biological organism in the traditional sense, but as a recursive mythopoeic infection of the Platonic logos. Through an engagement with Deleuze’s critique of Platonism, Duns Scotus’ theory of univocity, and Leibniz’s metaphysical principles, the book traces how X. glossophagii parasitizes the criteria of truth rather than its claimants, undermining the epistemological hygiene of dialectical distinction. This linguistic pathogen induces a state of semiotic necrosis—a collapse of the propositional structure of language into recursive mythologemes and corrupted predications—rendering grammar a site of ontological autoimmunity. The book theorizes X. glossophagii as a machinic agent of difference without identity, speaking not about being but as being, in univocal pulsations that erode the analogical structures of Thomistic ontology and the representational logic of Aristotelian genera. Through this infection, concepts like goodness, oneness, and truth become metabolic substrates of linguistic decay. Language ceases to refer; it replicates. Haecceity is no longer individuating but viral, a differential ooze that folds subjectivity into microbial singularities. Drawing on Deleuze’s work in Difference and Repetition and The Fold, the book maps the infection’s semiotic topography through the logic of peristaltic folds, machinic simulation, and ontological recursion. Ultimately, the book proposes that in X. glossophagii, we encounter a xenopoetic pathogen that enacts the horror of the dialectic's autoimmune collapse: not the failure of language, but its hyperfunction. The infected subject becomes a glossophagic lesion through which being speaks—not in unity, but in infinite semiotic difference. The pathogen does not claim to be true; it performs the test by which truth is recursively falsified. Language horror, then, is not the absence of sense, but its parasitic proliferation beyond containment: the virulence of univocal being as xenogenic utterance. Includes Hybrid Futures: Human Adaptation in Symbiotic Ecosystems by Zoetica Ebb.