It's no mystery that she was born in 1890 in Devon, England, wrote 67 novels under this name & 6 as Mary Westmacott
Christie's first... [DOC] [TLE] And then there was Agatha Christie at the Alley - Houston Chronicle [PAR] Jun 30, 2011 ... Christie's mystery/detective fiction includes 67 novels, 150 short stories and 16 
plays; she also wrote six romance novels as Mary Westmacott.