Invidens Sappho: How They Made the Tenth Muse Illiterate and Jealous is a reception history by Lee Sharks, deposited on 8 November 2026 in Provenance: Journal of Forensic Semiotics as the companion of Closing the Fragment (#1749). It follows how the jealousy reading of Sappho fragment 31 was made and kept. It reads antiquity first: the maker and authority on love in Plato, Strabo, Longinus, Plutarch and Maximus of Tyre, who calls her love the erotic art of Socrates; the lover who loses in Menander's leap and Ovid's Heroides 15; the poem's symptoms circulating without her in Lucretius, Horace, Theocritus and the physician's story of Stratonice; and the historians Aelian and Athenaeus, who make the lover of Phaon a second Sappho. No seated ancient witness joins the lover to the poem through jealousy. The modern record is read in date order with no line of descent assumed: Gottfried Hermann's Elementa doctrinae metricae of 1816, which declares a refashioned close ('refinxi') and reads envy off it under a conditional; F. G. Welcker's refusal of Hermann by name the same year; William Mure's rival given as the scene in 1850; Bergk's apparatus of 1882; Smyth's denial of 1900; Wilamowitz's wedding song; and Denys Page's declared amendment of the ancient description to 'a love in jealousy', authorized by an account of antiquity that files disagreement as one generation's mistake. A section on the present, 'Jealousy before reading', reads headings, a radio introduction, a sixth-grade class and essays that name the emotion before the poem, and finds that closure of the text and closure of the reading are separate operations: the reading survives a marked text and a quoted objection. The study also finds that the same reception took the poet's hand, receiving as a voice overwhelmed the poet whom a fifth-century Attic vase shows reading from a roll and whom Ovid made write. Its findings are read under the archive's sophistry measure (#1727), with Hermann's declared conjecture as the control. It carries an SPXI packet and states the priority of the jealousy reading, and the routes between its witnesses, as open.