NMLP P-000369 · True-first precedence · minted 2026-07-04

Murder Is Easy (US: Easy to Kill)

Agatha Christie · William Collins (Crime Club) · 1939

The UK Collins Crime Club edition is the true first; the US Dodd, Mead edition is a separate American first under the changed title Easy to Kill.

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New Mexico Literacy Project — True-first precedence NMLP P-000369 for "Murder Is Easy (US: Easy to Kill)" by Agatha Christie (https://newmexicoliteracyproject.org/id/point/p-000369, CC BY 4.0, dataset DOI 10.5281/zenodo.21184548).