How about 'A young adult has to solve a mystery that has haunted their family for generations.' This could lead to all sorts of adventures and character development. There could be hidden clues, long-lost relatives, and unexpected twists.
Well, with short story prompts for fiction, you should consider it as a springboard. If the prompt is about a time - traveling event, start imagining the character who experiences it. Is it a scientist? A regular person? Then, think about the rules of time travel in your story. How does it affect the character? What is the character's goal in this time - traveling journey? You can also add sub - plots related to the character's personal life before and after the time - travel.
For example, 'Imagine a future where time travel is common, but has strict rules.' To make use of this, think about what those rules might be and how they affect people's lives. Also, consider the adventures and challenges that could arise from such a situation.
To avoid it, you need to think outside the box. Avoid overused themes and try to come up with unique storylines and characters. Also, pay attention to the language and make it more mature than the usual YA style.
Er Ya was a classic work written by Zheng Xuan, a writer in the Eastern Han Dynasty. According to legend, Zheng Xuan started writing Er Ya around 170 AD and finished it around 190 AD. Er Ya was a book that explained classical literature. It mainly involved astronomy, geography, biology, language, culture, and other aspects of knowledge. It was an important classic in ancient Chinese literature.