The problem and solution in the book of the treasures of lemon brown?

"The Treasure of Lemon Brown" by Walter Dean Myers is about a young boy named Greg who learns valuable life lessons from Lemon Brown, an elderly man he meets in an abandoned building. Lemon Brown's treasure is not material possessions but his memories, specifically the blues harmonica and newspaper clippings that remind him of his past as a musician. The problem in the story is Greg's strained relationship with his father and his struggle with feeling unappreciated. The solution comes when Lemon Brown shares his story and teaches Greg the importance of valuing family and heritage over material wealth. This helps Greg gain a new perspective on his own life and repair his relationship with his father.