Given the task definition and input, reply with output. In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

One of this author's works opens with a stick fight involving Kamau, a character who turns his father's resentment into murderous rage against the protagonist, the radically Christian Joshua. Another of this author's characters has plastic surgery to make his eyes the size of light bulbs to better serve a man constructing "Marching To Heaven," the ruler of Aburiria. This author of The Black Hermit, This Time Tomorrow, and The River Between wrote of Jezebel and her wife John, who try to exploit the farmworkers (*) Kiguunda and Wangeci, in a work about Gathoni, who utters the titular phrase. Njoroge is the protagonist of his Weep Not, Child, while I Will Marry When I Want earned a trip to prison for this author, who wrote of Kihika's betrayal to the British by Mugo his best-known work. After mercifully swearing off English writing, this man reworked all of his texts into Kikuyu, including Petals of Blood. FTP, identify this author of A Grain of Wheat, a writer from Kenya.
Literature