Doris Gercke

Doris Gercke
Gercke at a reading, 2007
Born(1937-02-07)7 February 1937
Died25 July 2025(2025-07-25) (aged 88)
Hamburg, Germany
Other namesMary-Jo Morell
OccupationNovelist

Doris Gercke (German: [ˈdoːʁɪs ˈgɛʁkə]; 7 February 1937 – 25 July 2025) was a German writer of novels, especially thrillers but also books for children and youth, and poetry. For some books, she used the pen name Mary-Jo Morell. She is known for a series of thrillers featuring a female private detective, who inspired inspector Bella Block in a popular television series by ZDF.