The main idea is likely about Mrs. Armitage and her encounter with a big wave. Maybe it shows how she deals with the situation created by the big wave, like facing danger or perhaps having an adventure related to it.
Once upon a time, there was a surfer named Jack. He went to a beach known for its huge waves. One day, a really big wave came. It was like a giant wall of water. Jack paddled hard and managed to catch the wave. He rode it all the way to the shore, feeling the power and the rush. It was an amazing experience for him.
In a small coastal town, there was a big wave story that had been passed down for generations. Legend had it that a huge wave once swept in and carried away a fisherman's boat. But instead of drowning, the fisherman rode the wave like a wild horse. He held on tight to his boat and, amazingly, the wave deposited him safely on an uninhabited island. From there, he signaled for help and was rescued. This story became a symbol of hope and the power of nature in the town.
I don't think it's real. Usually, such names and stories are part of creative works rather than based on actual events. There's no concrete evidence to suggest it's real.
There's no way to know precisely without reading the story. But perhaps there is a scientist who studies the big wave, trying to predict its behavior. There could also be some local kids who get caught up in the events related to the big wave. And of course, there might be the rescue workers or sailors who play important roles in dealing with the situation that the big wave creates.
The main plot might be about a big wave, perhaps its impact on a community, or someone's experience with it. But without reading it specifically, it's hard to say more precisely.
Again, without knowing the details, it could be a theme of survival. The big wave might pose a threat to the characters, and their struggle to stay alive could be the main theme.