NMLP P-000444 · True-first precedence · minted 2026-07-04

Sparkling Cyanide (US: Remembered Death)

Agatha Christie · Dodd, Mead and Company (US) — true first; William Collins Crime Club (UK) followed · 1945

Contrary to the assumption that the UK Collins edition is the true first, the US Dodd, Mead edition (Remembered Death, February 1945) precedes the UK Collins edition (December 1945) by about ten months, making the US printing the true first appearance in book form.

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New Mexico Literacy Project — True-first precedence NMLP P-000444 for "Sparkling Cyanide (US: Remembered Death)" by Agatha Christie (https://newmexicoliteracyproject.org/id/point/p-000444, CC BY 4.0, dataset DOI 10.5281/zenodo.21184548).