Perhaps there's a family member, like a grandparent, who tells stories about the secret pool. And then there could be a child who is curious and sets out to uncover the truth about the pool. There might also be a local who warns the characters about the pool for some reason.
Well, I think family could be a theme. In many short story collections, there are often tales that revolve around family relationships. Also, nature could be a theme considering the mention of a pool which is a part of nature. The stories might explore how characters interact with nature.
I'm not sure specifically as I haven't read it. It could be about some events that happened at a pool in Secret High School 5, like maybe a big swim meet, a mystery around the pool, or some sort of relationship drama that unfolds near the pool area.
There might be a story of a pool party. People are dancing around the pool, there's music playing, and everyone is having a great time. There are colorful lights reflecting on the water at night, and friends are making memories that will last a lifetime. There could also be a story about a friendly pool tournament where the winner gets a cool prize.
A 'day at the pool' can be filled with many interesting stories. Maybe there are tales of friends having a great time playing pool games like Marco Polo. There could be stories about someone learning to swim for the first time at the pool. Or perhaps a story about a family having a picnic by the poolside.
I'm not sure specifically as I haven't read it. But it might include various adventures or mysteries related to Salty, perhaps some tales about friendship and discovery.
One notable story could be the title story 'The Burning Secret' itself. It might deal with themes of secrecy and the consequences that come with hidden knowledge.
I'm not sure exactly who the main characters are without reading the book. But usually, there are characters whose lives are most closely followed and whose stories are central to the themes of the collection.
I don't know for sure, but Salty could be a character like a young boy or an old sailor. Maybe he has a special ability or knowledge that is the secret in the title.