01525cam a2200373 i 4500 405590068 TxAuBib 20191210120000.0 880404t19881969||||||||||||||||||||eng|u 9780553350722 0553350722 (OCoLC)17729269 TxAuBib rda Christie, Agatha. N or M? / Agatha Christie. New York : Bantam Books, 1988. ℗1969. 202 pages ; 22 cm. txt rdacontent n rdamedia nc rdacarrier Tommy and Tuppence ; 3 Agatha Christie mystery collection Tommy and Tuppence Beresford, two unlikely spies, help to defend their country by trying to rout out two highly placed Fifth Columnists. When Tommy is asked by the British Intelligence Service to go and stay at the Sans Souci guest house he is astonished to see Tuppence there. The mission: to identify which of the other guests is N and which is M. - Publisher. 20191210. Beresford, Tommy (Fictitious character) Fiction. Beresford, Tuppence (Fictitious character) Fiction. PRIVATE INVESTIGATORS England Fiction. MARRIED PEOPLE England Fiction. Domestic fiction. Mystery fiction. Tommy and Tuppence ; 3. Agatha Christie mystery collection.