Beginning: In the beginning of the story, the boys had to deliver their dad’s legal papers to the police station. On their way there a speeding car almost killed Joe. On their way back from delivering the papers, they meet their friend Chet who tells them that his car is stolen
Middle: The Tower Mansion, a milestone for Bayport has been robbed. During the night while the security was being repaired, the Tower Mansion was robbed. The owner, Major Applegate, thought that it was his servant and so the servant went to jail. Joe and Frank have to solve this mystery.
End: The boys went to the old 'water' tower, the boys climbed up and down inside the old wooden water tower and discover the missing jewels and bonds hidden under a pile of boards. The servant is rehired and given a raise.
Characters: Joe Hardy, Frank Hardy, Fenton Hardy, Chet Morton, Major Applegate, Smuff, Mr. Robinson, Slim, Jackely
Setting: Bayport, New York
Middle: The Tower Mansion, a milestone for Bayport has been robbed. During the night while the security was being repaired, the Tower Mansion was robbed. The owner, Major Applegate, thought that it was his servant and so the servant went to jail. Joe and Frank have to solve this mystery.
End: The boys went to the old 'water' tower, the boys climbed up and down inside the old wooden water tower and discover the missing jewels and bonds hidden under a pile of boards. The servant is rehired and given a raise.
Characters: Joe Hardy, Frank Hardy, Fenton Hardy, Chet Morton, Major Applegate, Smuff, Mr. Robinson, Slim, Jackely
Setting: Bayport, New York