Question: What is similar about Ann-Marie MacDonald and Anthony Powell? 

Context paragraphs:
Fall on Your Knees: Fall on Your Knees is a 1996 novel by Canadian playwright, actor and novelist Ann-Marie MacDonald.  The novel takes place in late 19th and early 20th centuries and chronicles four generations of the complex Piper Family.  It is a story of "inescapable family bonds, terrible secrets, and of miracles."  Beginning in Cape Breton Island, Nova Scotia through the battlefields of World War I and ending in New York City, the troubled Piper sisters depend on one another for survival.

Doc Zone: Doc Zone was a documentary series on CBC Television.  It features both independently produced and in-house productions.  It was presented by author, actor and playwright Ann-Marie MacDonald.  It has been nominated for the 2nd Canadian Screen Awards.

Goodnight Desdemona (Good Morning Juliet): Goodnight Desdemona (Good Morning Juliet) is a 1988 comedic play by Ann-Marie MacDonald in which Constance Ledbelly, a young English literature professor from Queen's University, goes on a subconscious journey of self-discovery.

Nigredo Hotel: Nigredo Hotel is a chamber opera in one act composed by Nic Gotham to a libretto by Ann-Marie MacDonald.  It premiered on 13 May 1992 at the Tarragon Theatre in Toronto in a production by Tapestry New Opera Works who had commissioned the opera.  The production won two Dora Awards and the work was nominated for the Floyd S. Chalmers Canadian Play Award.  Subtitled "an operatic thriller", it is set in Room 7 of a run-down hotel which takes its name from the Jungian concept of Nigredo or "dark night of the soul".  The story involves an encounter between the beautiful but crazed woman who runs the hotel and a brain surgeon forced to take refuge there after crashing his car.

Ann-Marie MacDonald: Ann-Marie MacDonald (born October 29, 1958) is a Canadian playwright, novelist, actress and broadcast host who lives in Toronto, Ontario, Canada.  The daughter of a member of Canada's military, she was born at an air force base near Baden-Baden, West Germany.  She is of Lebanese descent through her mother.

Belle Moral: Belle Moral is a play by Ann-Marie MacDonald which premiered at the Shaw Festival in 2005.

The Arab's Mouth: The Arab's Mouth is a 1990 play by Ann-Marie MacDonald which she later revised to create "Belle Moral", at which point most of the Arabic references were cut.  The title refers to a shape found on a stone by the central character—a circle or zero.  First staged at the Factory Theatre in Toronto, MacDonald lightly revised the play for publication, at which point it was staged at Theatre Kingston in Kingston, Ontario.  It is now out of print, having been superseded by "Belle Moral".

The Way the Crow Flies: The Way the Crow Flies is a novel by Canadian writer Ann-Marie MacDonald.  It was first published by Knopf Canada in 2003.

Agents and Patients: Agents and Patients is the fourth novel by the English writer Anthony Powell.  It combines two of the aspects of 1930s life, film and psychoanalysis.  In what Powell himself has acknowledged is a "roman a clef" of sorts (Anthony Powell, "Journals 1987-1989", 121), a comically critical eye is cast across "entre deux guerres" society and its often self-indulgent, usually unsatisfied quest for contentment.

Anthony Powell: Anthony Dymoke Powell ( ; 21 December 1905 – 28 March 2000) was an English novelist best known for his twelve-volume work "A Dance to the Music of Time", published between 1951 and 1975.

Supporting paragraphs: Ann-Marie MacDonald Anthony Powell
Answer: novelist