I'm not sure exactly as I haven't read it. But it could be a young couple. Often in novels with a title like this, there's a romantic element, so a male and female lead might be the main characters.
The main theme could be love and self - discovery. The story might explore how the characters find themselves and form deep emotional connections while in the setting under the oak tree.
Yes, it is quite popular. It has attracted a large number of readers due to its engaging plot and well - developed characters. The story often takes readers on an emotional journey filled with love, growth, and challenges.
I haven't read it yet, so I'm not sure about the exact plot. But generally, it might continue the story from the first book, perhaps developing the relationships between the characters further and introducing new challenges or adventures.
The main theme is often about love and growth. The story might explore how the characters develop in their relationships while being in the setting under the oak tree.
There are likely characters whose lives are intertwined with the oak tree setting. It could be a young woman who finds solace or a new beginning under the oak tree. And perhaps a man who crosses her path and they become central to each other's stories. There might also be supporting characters like local villagers or family members who add depth to the story and interact with the main characters in the context of the oak tree environment.
I'm not certain as I haven't read this book, but likely the main characters are the ones introduced in the first book and continue to be central in the second one.