Porck, T. 2026. An Enduring Enigma: Shedding Light on the Text of the Leiden Riddle, 1845–2025. SELIM. Journal of the Spanish Society for Medieval English Language and Literature. 31, 1 (Jul. 2026), 81–113. DOI:https://doi.org/10.17811/selim.31.2026.81-113.