Among her works, perhaps the most famous is her book The Cat who saw God (1932), a comic drama about a cat who is possessed by the Roman Emperor Nero who decides to settle down with an old English spinster.
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Boyett earned much praise for The Hidden as a hospital patient named Jonathan P. Miller, possessed by an alien being with a taste for red Ferraris and rock and roll music.
The name "XUL" references the film Ghostbusters (1984), in which an ancient Sumerian deity called Zuul possesses the character Dana Barrett and declares, "There is no Dana, only Zuul".
Polak worked as a professional jenbe player in Bamako for one year in 1997/98, performing at well over a hundred traditional weddings, spirit possession dances and other celebrations on the basis of being hired by the late Jaraba Jakite, most of the times, and occasionally by the late Yamadu Bani Dunbia, by Jeli Madi Kuyate, and by Drissa Kone.