"Tenebrous Psalms of the Congo Nebula" unfolds in N'walins Prime, a futuristic floating New Orleans where ancient rhythms and cosmic horror converge. The story centers on Dr. Amara Sinclair, a quantum ethnomusicologist, and her unlikely alliance with two stellar serpentids, Nyoka and Kalimbo, as they confront an existential threat to Earth's musical heritage.
When a mysterious obsidian nebula manifests above Congo Square during Mardi Gras, it begins broadcasting frequencies that only melanin-enhanced humans can perceive. This cosmic phenomenon attracts the attention of the Huxley-Stahl syndicate, corporate occultists who seek to harvest and weaponize these ancestral sound patterns.