It might be an adventure genre. Suppose the story is about a group of explorers who went on a dangerous expedition and came back with amazing tales. They could have faced wild animals, harsh weather, and uncharted territories. That would make it a great adventure story.
It could also be a mystery genre. Maybe the story involves uncovering a long - hidden secret or solving a crime that has baffled people for years. There could be clues scattered throughout the story that the reader has to piece together to understand the whole truth.