Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

Q: Almost nothing is left of the Bastille except some remains of its stone foundation that were relocated to the side of the Boulevard Henri IV. Historians were critical of the Bastille in the early 19th century, and believe the fortress to have been a relatively well-administered institution, but deeply implicated in the system of French policing and political control during the 18th century.

A: What material was used for Bastille?
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Q: Decameron Nights is a 1953 anthology Technicolor film based on three tales from The Decameron by Giovanni Boccaccio, specifically the ninth and tenth tales of the second day and the ninth tale of the third.

A: The Decameron Nights is based upon what?
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Q: Days of Magic, Nights of War (2004) is the second book in a series of five by author Clive Barker, called The Books of Abarat.

A:
The writer of Days of Magic, Nights of War is who?
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