The Secret Adversary
1922 NOVEL BY AGATHA CHRISTIE
Secret adversary; Secret Adversary; The Secret Adversary (film); Adventures Inc.; Die Abenteurer G.m.b.H.
The Secret Adversary is the second published detective fiction novel by British writer Agatha Christie, first published in January 1922 in the United Kingdom by The Bodley Head and in the United States by Dodd, Mead and Company later in that same year. The UK edition retailed at seven shillings and sixpence (7/6) and the US edition at $1.