It depends on the author's plans. Sometimes new installments can come out unexpectedly.
GOSICK's anime, novel, and manga were related but not completely independent works. GOSICK was an adaptation of the novel of the same name by Haihara Qiong, produced by Facebook. The novel was first published in 2011, and the animation began airing in July 2016. The animation mainly told the story of a detective revolving around various criminal activities. GOSICK's novel was divided into two volumes, which told the story of the protagonist, Kuroshima Tomoya, working as a detective in GOSICK's office. Other than novels, there were also manga, games, and many other forms of derivative works. GOSICK manga was a work published by Hachette, which was different from the novel. It mainly told the story of the heroine, Shirajima Reiko, as a detective, and Kurojima Tomoya as her assistant. In addition, the manga also contained some plots that had nothing to do with animation. GOSICK W was a spin-off of GOSICK. It mainly told the story of the heroine, Reiko Shirajima, and her husband, Tomoya Kurojima, solving a case together. Unlike the original GOSICK, GOSICK W was more feminine in terms of story background and character setting, and it paid more attention to the description of the feelings between the characters.
I'm afraid I can't tell you the author of 'the last green valley novel'. It could be a relatively unknown author or a new release that hasn't gained wide - spread recognition yet. You may need to do some research, like checking with literary agents or book clubs that focus on new or niche literature.
I'm not sure specifically as I haven't read it in detail. But generally, it might be about a valley that has some sort of unique significance, perhaps related to nature, the environment, or the people living there.
The author of Gosick was JK Rowling. She published this novel in 1998. It tells the story of a lonely and mysterious girl who discovers something strange at school. As the story develops, she gradually uncovers a huge conspiracy involving history and myths from all over the world. This novel was hailed as a classic fantasy novel and was widely praised and sought after.
I, GOSICK, haven't finished writing my novel yet.
Yes, the GOSICK novels have been completed.
It depends. Some parts might be based on real events, but it could also have fictional elements added for dramatic effect.