NMLP P-027319 · True-first precedence · minted 2026-07-04

Troubled Blood

Robert Galbraith (J.K. Rowling) · Sphere / Little, Brown (London) · 2020

UK Sphere edition is conventionally cataloged as the first edition (published 15 September 2020), released alongside the US Mulholland edition. UK precedence rests on cataloging convention rather than a clear date gap.

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New Mexico Literacy Project — True-first precedence NMLP P-027319 for "Troubled Blood" by Robert Galbraith (J.K. Rowling) (https://newmexicoliteracyproject.org/id/point/p-027319, CC BY 4.0, dataset DOI 10.5281/zenodo.21184548).