Books with title The Mystery of the Stolen Painting

Sam Watkins is a sixth grade private eye, with an inquisitive mind, outgoing personality, and business cards. He's readily available and willing to help his friends to solve mysteries.In this story, Billy, a fourth grade boy, is riding his bicycle home from school. He's had a great day, in part because he got a new baseball bat for his birthday, and used it to hit a home run during recess. Unfortunately, a gang of eighth graders is looking for a new bat. They see Billy go home, and notice the sparkle of his bat in the basket in the back of his bike. They give chase, and manage to steal the bat. All seems lost, until Billy is introduced to Sam, who takes on his case.

Tonight is a very important night and there is a BIG problem in Sushiville! Two best friends, with very different personalities, are in a race against time. Mika, a loving, kind and super creative daughter, has created a masterpiece painting that she is presenting to her father tonight for his birthday. Unfortunately, her friend Mochi has a penchant for getting into mischief and when she does, her rice coat gets very sticky. Unbeknownst to Mika and Mochi, something has gone awry and the prized painting is stuck to Mochi. If the mystery of why the painting is glued on to Mochi isn't solved, it could ruin the night. At the party the two friends come to realize that today they learned more about friendship than solving a mystery.

Henry, Jessie, Violet, and Benny used to live alone in a boxcar. Now they have a home with their grandfather, and they’re fixing up their boxcar so they can ride it in the big Greenfield Founder’s Day parade. There’s just one problem: Someone has stolen the boxcar . . . with their dog, Watch, in it! If only they can find the missing boxcar, it will lead them to Watch. Can the Boxcar Children solve their most important mystery ever?