- UK
- Collins, London, Nov. 1941
- Woman's Pictorial, Apr.26-Jun.7 1941 as 'Secret Adventure'
- US
- Dodd, Mead, New York, 1941
- Redbook, Mar. 1941
Plot
It is World War II, and while the RAF struggles to keep the Luftwaffe at bay, Britain faces an even more sinister threat from 'the enemy within' - Nazis posing as ordinary citizens.
With pressure mounting, the Intelligence service appoints two unlikely spies, Tommy and Tuppence Beresford. Their mission: to seek out a man and a woman from among the colourful guests at Sans Souci, a seaside hotel. But this assignment is not to stroll along the promenade. After all, N and M have just murdered Britain's finest agent...
Characters
Tuppence Beresford • Tommy Beresford • Albert Batt • Dr. Binion • Major Bletchley • Alfred Cayley • Elisabeth Cayley • Lord Esterfield • Mr. Grant • Commander Haydock • Anthony Marsdon • Sophia Minton • Mrs. O'Rourke • Eileen Perenna • Shelia Perenna • Vanda Polonska • Betty Sprot • Millicent Sprot • Carl von Deinim
Films & TV
- N or M?, UK, 2015
- TV drama list
UK/US covers
Collins / HarperCollins
- ♦Bevis Benneworth
- White Circle, 1949; ♦Lauralee(ManorBooks)
- White Circle, Services edition
- White Circle, Indian Services edition
- Fontana, 1962
- Fontana, 1964; ca: Tom Adams*
- Fontana, 1969; ca: Tom Adams*
- Fontana(4415), 1976; ISBN:9780006144151; ca: Tom Adams*
- Fontana, 1985 20th
- ISBN:9780006163015
- HarperCollins, 1995; ISBN:9780006163015
- HarperCollins, 1999; Hardcover; ISBN:9780002315678
- HarperCollins, 2001
- HarperCollins, 2008; Masterpiece edition
- HarperCollins, 2010; Facsimile edition/Hardcover; ISBN:9780007354627
- William Morrow Paperbacks, 2012; ISBN:9780062074324
- Collins, 2012; ELT Reader; ISBN:9780007451623
- Center Point Pub, 2013; Library Binding/Hardcover; ISBN:9781611736113
- HarperCollins, 2015; ISBN:9780008125936
- HarperCollins, 2015; ISBN:9780007590612
- William Morrow Paperbacks, 2016; ISBN:9780062449931
- HarperCollins, 2018
- HarperFiction, 2018; ISBN:9780008256203
Dodd, Mead
- ♦Katsurou Hayashi
- Putnam, 1987; Winterbrook edition; ISBN:9780396091639
Dell
- DELL(187), 1947; ca: Gerald Gregg
- DELL(187), 1947: mapback
- Dell(6254), 1964; ca: William Teason
- Dell(6254), 1968; ca: William Teason
- DELL(6254), 1974
- DELL(#6254), 1976
- DELL(#6254), 1977
- DELL, 1979; ♦Sheldon Goldberg
- DELL, 1981
Pan
- Pan(G259), 1959; ca: Glenn Steward; ♦Lauralee(ManorBooks)
- Pan(G259), 1961; ca: Sam Peffer; ♦Lauralee(ManorBooks)
- Pan; ISBN:9780330295987
- Pan, 1973; ISBN:9780330233279; ♦Sheldon Goldberg
Berkley
- Berkley, 1984; ISBN:9780425067963
- Berkley
- Berkley, 1996; ISBN:9780425098455
other publishers
- Signet, 2000; ISBN:9780451201133
- Jonathan Press(#J13), 1941
- Ulverscroft Large Print Books, 1984; Hardcover; ISBN:9780708911563
- Planet Three Publishing, 2003
Magazine
- Redbook, March, 1941
Audio
- G K Hall Audio Books, 1992; ISBN:9780816192892
- Macmillan Digital Audio, 2004; ISBN:9781405046459
- Macmillan Audio Books, 2002; ISBN:9780333989036
- Macmillan Audio, 2004; ISBN:9781559279819
- HarperCollins. 2005; ISBN:9780007200313
- Audio Partners, 2001; ISBN:9781572702103
- HarperCollins, 2007
- HarperAudio, 2012
- Chivers Audiobooks, 2007; ISBN:9781405683319
- HarperCollins, 2016; ISBN:9781504764186
- HarperCollins, 2007
Western Europe covers
N ou M ?
Le Masque (#353) 1948
- Le Masque, 1960
- Le Masque, 1983
- Le Masque, 1991
- Le Masque
- Masque Christie, 2011; ISBN:9782702425534
- Masque Christie, 2019; ISBN:9782702449325
Club des Masques (#32) 1967
- Club des Masques, 1967; ca: Tom Adams*
- Club des Masques, 1983
- Club des Masques, 1984
Le Livre de Poche (#5764) 1983
- Le Livre de Poche, 1983
- Le Livre de Poche, 1988
- Le Livre de Poche, 2003
- Le Livre de Poche
- Le Livre de Poche; ISBN:9782253031925
- Le Livre de Poche; ISBN:9782253031925
other publishers
- Hachette, 2004; Collection Agatha Christie (20); ISBN:9782846343886
- Edito-Service S.A., 1972
N of M
- Sijthoff, 1958
- Sijthoff, 1961
- Sijthoff, 1974; ♦Eric Gellaerts
- Sijthoff, 1974
- Sijthoff, 1975
- Sijthoff, 1983
- Sijthoff, 1987; ISBN:9789021837819
- Luitingh-Sijthoff, 1993; Poema; ISBN:9789024513123
Dutch Media Group, 2015; Het Laaste Nievus
- Overamstel Uitgevers, 2015; ISBN:9789048823352
Rotkäppchen und der böse Wolf // Das Haus der Mrs. Perenna / N oder M?
- Das Haus der Mrs. Perenna; Scherz, 1945
- Scherz, 1960
- Scherz(#140), 1962
- Scherz(#140), 1968
- Scherz(#443), 1974
- Scherz(#443), 1981
- Scherz(#443), 1983; ISBN:9783502504436
- Bertelsmann, 1985
- Scherz, 1990
- Loewe, 1992; ISBN:9783785524510
- Scherz, 1994; ISBN:9783502504436
- Weltbild, 1995
- Scherz, 1996
- Scherz, 2003
- Scherz, 2003
- Fischer, 2006; ISBN:9783596168941
- Weltbild, 2006
- Hachette, 2010
- N oder M?; Atlantik, 2019; ISBN:9783455004830
Northern Europe covers
N eller M
- Bonniers, 1942; Bonniers detektivromaner; ca: Mark Sylwan
- Bonniers, 1967; Zebra Special (19); ca: Tom Adams*
- Bonniers, 1970; Delfinserien (290); ca: Per Åhlin
- Bonniers, 1983; Stora Romanklubben; ISBN:9789100484040; ca: Magnus Andersson
- Bonniers, 1990; Bokia; ISBN:9789100550363; ca: Jan Sjöberg & Anders Backman
- Bonniers, 1997; Bonnierpocket; ISBN:9789100564483; ca: Leslie Quagraine
Audio
N eller M?
Saga Egmont, 2020; ISBN:9788711788295
N eller M?
- Carit Andersens, 1964
- Forum, 1971
- Rosenkilde, 2017; ISBN:9788711746981
- Lindhardt og Ringhof (e-bog), 2021; ISBN:9788711746981
Audio
N eller M?
Lindhardt og Ringhof, 2022; ISBN:9788728422700
N eller M?
- Aschehoug, 1975
- Aschehoug, 1990; ISBN:9788203163043
Salomonin tuomio
- WSOY, 1988; ISBN:9789510149683
- WSOY, 2015; ISBN:9789510413302
V või W
- Elmatar, 2001; Öölane; ISBN:9789985935460
N ar M?
- Sirokas, 1998
Southern Europe covers
Quinta colonna
- Mondadori, 1961; I Capolavori dei Gialli(#164)
- Mondadori, 1987; ISBN:9788804226192
- Mondadori, 1994; I Classici del Giallo(710); ISBN:978-8804410928; ca: Carlo Jacono
- Mondadori, 1995; Oscar scrittori moderni; ISBN:9788804410928
- Mondadori, 2003; Oscar scrittori moderni; ISBN:9788804519256
- Hachette Fascicoli, 2005
- Mondadori, 2013; ISBN:9788852033049
El misterio de "Sans-Souci"
- Biblioteca Oro(#369), 1958; ♦Pablo Ramirez Jr.
- Biblioteca Oro(#369), 1965; ca: William Teason
- Biblioteca Oro(#281), 1975; ISBN:9788427202818
- Molino, 1997; ISBN:9788427285385
- Planeta, 2001; ISBN:9788477511496
- Molino, 2004; ISBN:9788427298255
- RBA, 2008; ISBN:9788447357918
- RBA (EPUB, 2013)
- Planeta, 2013; ISBN:9789504931454
M ou N? // Tempo de Espionagem / N ou M?
- Tempo de Espionagem; Livros do Brasil, 1960; Colecção Vampiro(#161)
- Nova Fronteira, 1984
- Nova Fronteira, 1988
- Record, 1988; ISBN:9788511516623
- Record, 1988; ISBN:9788501155559
- L&PM Pocket, 2011; ISBN:9788525422583
- N ou M?; ASA(#79), 2014; ISBN:9789892327389
- HarperCollins Brasil, 2016; ISBN:9788569809401
- Globo Livros, 2019; ISBN:9786580634118
- HarperCollins Brasil, 2021; ISBN:9786555111743
Το κυνήγι των κατασκόπων / Ν ή Μ / Η μάχη των κατασκόπων
Το κυνήγι των κατασκόπων
- Λυχνάρι(A178)
- Λυχνάρι(A178)
- Λυχνάρι(A178), 2010; ISBN:9789605170738; ca: Tom Adams*
Ν ή Μ
- Ψυχογιός, 2019; ISBN:9786180131079
Η μάχη των κατασκόπων
- 1967
N ili M?
- BIGZ (Beograd), 1991; ♦Svetlana Andjelic
- Mladinska knjiga, 2015; ISBN:9788679284143
- BDR Media; ISBN:9788660121501
N ili M
- V.D.T. (Zagreb), 2005; ISBN:9789536838196
N ili M?
- Svjetlost (Sarajevo), 1967; ♦Svetlana Andjelic
Eastern Europe covers
N či M?
- Naše vojsko, 1967; ♦Czibóka Tamas
- Knižní klub, 2013; ISBN:9788024242736
N vagy M?
- Magvető Kiadó, 1975; Albatrosz Könyvek; ISBN:9789632700199; ♦Czibóka Tamas
- Magyar Könyvklub/Európa Kiadó, 1997; Képkeretes-Sorozat; ISBN:9789635485505; ♦Czibóka Tamas
- Aquila Kiadó, 2007; Aquila Könyvek; ISBN:9789636795627; ♦Horváth Tamás
- Európa Kiadó, 2013; Agatha Christie 125-Sorozat; ISBN:9789630795548
- Helikon Kiadó, 2021; ISBN:9789634796152
Произшествие в Сан Суси // Н или М?
- Списание „Антени“, 1990
- Н или М?; Благо, 1992
- Ера(#57), 2014; ISBN:9789543893232
N czy M?
- Wydawnictwo Iskry, 1956
- Wydawnictwo Iskry, 1992; ISBN:9788320713671
- Prószyński i S-ka, 1998; Biblioteczka Konesera; ISBN:9788373371149
- Hachette Polska, 2002; Kolekcja Hachette: Agatha Christie(27); ISBN:9788371480072
- Prószyński i S-ka, 2004; ISBN:9788373376779
- Wydawnictwo Dolnośląskie, 2005; Agata Christie - Królowa Kryminału; ISBN:9788373841888
- Wydawnictwo Dolnośląskie, 2010; Agata Christie - Królowa Kryminału; ISBN:9788324589388
- Wydawnictwo Dolnośląskie, 2015; Klasyka Kryminału; ISBN:9788327150899
- Wydawnictwo Dolnośląskie, 2017; Agatha Christie Kolekcja Kryminałów(76); ISBN:9788327154972
Audio
N sau M?
- Abeona, 1993
- Multi Press, 1999; ISBN:9789739086301
- Litera, 2017; ISBN:9786063317828
- Litera, 2021; Agatha Christie Colectie; ISBN:9786063374043
Икс или игрек? / Н или М?
Икс или игрек?
- Эксмо, 2011; Вся Кристи; ISBN:9785699298723
- Эксмо, 2012; Детективный клуб Агаты Кристи; ISBN:9785699563388
- Эксмо, 2016; Агата Кристи. Серебряная коллекция; ISBN:9785699880119
- Hachette, 2016; Коллекция Агата Кристи
- Эксмо, 2019; Агата Кристи. Любимая коллекция; ISBN:9785041050955
Audio
Икс или игрек?
Эксмо, 2021
Н или М?
- АСТ, 2002
- АСТ, 2003
- Центрполиграф, 2003
N or M ?
- Менеджер, 2004
- Каро, 2009; ISBN:9785992504132
Middle East & Asian covers
ნ თუ მ ?
- პალიტრა L, 2019; ISBN:9789941298189
- პალიტრა L, 2022; ISBN:9789941352287
N veya M? // M. or. N. / Ölüm Pusudaydı / M. mi N. mi
- N veya M; Sinan, 1949
- M. or. N.; Ak Kitabevi, 1963
- M. mi N. mi; Ak Kitabevi,
- Ölüm Pusudaydı; Altın Kitaplar, 1981
- Altın Kitaplar, 2008; ISBN:9789752109612
- Altın Kitaplar; ISBN:9789752109612
גייס חמישי / גיס חמישי
- תשבץ סכנה
*
- גייס חמישי
- גייס חמישי
ידי מזרחי
1960
ن أو م؟ / الطابور الخامس / العميل السري
ن أو م؟
- JARIR Reader, 2014
ISBN:6281072078539
الطابور الخامس
- دار النجمة
- دار النجمة
العميل السري
- دار ميوزيك
2000; ISBN:9789953381152
- المكتبة الثقافية
1993
اِن یا اِم؟ / قتل يك جاسوس
اِن یا اِم؟
- Hermes books, A.P.1393
ISBN:9789643637064
- Hermes books, A.P.1390
ISBN:9789643637064
ca: William Teason
- شرکت سهامی کتابهای جیبی
A.P.1345
قتل يك جاسوس
- موسسه فرهنگی سماء
A.P.1375
গুপ্তচর ও সিরিয়াল কিলার / গুপ্তচর
- গুপ্তচর ও সিরিয়াল কিলার; সেবা প্রকাশনী, 2018; ISBN:9789841633059
- গুপ্তচর
N atau M?
- ?, 1977
- Gramedia, 1990; ISBN:9789795110781
- Gramedia, ; ISBN:9789795110781
- Gramedia, 2008; ISBN:9789792235074
- Gramedia, 2017; ISBN:9789792235074
ล่าสายลับมือสังหาร / ฉีกหน้ากาก เอ็น กับ เอ็ม
ล่าสายลับมือสังหาร
- ซีเอ็ดยูเคชั่น; ISBN:9786160833009
ฉีกหน้ากาก เอ็น กับ เอ็ม
- ♦Rattanachai Lueangwongngam
- สร้างสรรค์บุ๊คส์, 2007(2550); ISBN:9789743414282; ca: Tom Adams*; ♦Ratakorn
Người Đàn Bà Hoang Dã
- Công an Nhân dân, 2004
逍遙賓館之謎 / 諜海 / 谍海 / 桑苏西来客 / 密碼 / 密码
逍遙賓館之謎
- 遠行出版社, 1976
諜海
- 遠景出版, 1982; ca: Tom Adams*
- 遠景出版, 1988
- 風雲時代, 1990; ISBN:9789579536417
- 遠景出版, 1992; ca: Tom Adams*
谍海
- 华文出版社(阿嘉莎.克莉丝蒂侦探小说丛书 4), 1991
桑苏西来客
- 贵州人民出版社(阿加莎·克里斯蒂作品全集), 1998; ISBN:9787221047250
- 新星出版社(阿加莎·克里斯蒂侦探作品集20), 2014; ISBN:9787513315111
密碼
- 遠流 2003
密码
- 人民文学出版社(阿加莎·克里斯蒂侦探推理系列), 2007; ISBN:9787020064519
- 商务印书馆(阿加莎·克里斯蒂经典侦探作品集), 2016; ISBN:9787100119900
- 商务印书馆(阿加莎·克里斯蒂经典侦探作品集), 2019; ISBN:9787100174053
NかMか
- 早川書房, 1957; ハヤカワ・ポケット・ミステリ(308)
- 早川書房, 1978, 1983(12th); ハヤカワ・ミステリ文庫(HM1-42); ISBN:9784150700423; ca: Hiroshi Manabe
- 早川書房, 2004; クリスティー文庫(48); ISBN:9784151300486
N또는M // N인가 M인가
- N인가 M인가; 일신서적공사, 1988
- 해문출판사, 1991
- 해문출판사, 1998
- 황금가지(애거서 크리스티 전집 50), 2008; ISBN:9788982737503