"The Haunted Mine" by Harry Castlemon is a tale set in the early 1900s, telling the story of Julian Gray and Jack Sheldon, two orphaned boys striving to make an honest living. Their lives are upended when Julian buys a mysterious box at an auction filled with what he thinks are papers detailing a hidden gold mine. As they explore their discovery, they face a moral problem: should they keep the treasure, or locate S.W. Haberstro, the treasure's rightful owner? Julian's impulsive purchase of the box, despite Jack's concerns, kicks off a conflict where the boys weigh the benefits of wealth against doing what's right. To make things more difficult is the appearance of the shady Casper Nevins, who impacts their journey. This start to the book blends adventure, moral questions, and the close friendship of two young boys working through life's challenges.

The Haunted Mine
By Harry Castlemon
Two orphaned boys stumble upon a mysterious treasure map, forcing them to choose between fortune and their moral obligations as a shifty character threatens their adventure.
Summary
About the AuthorCharles Austin Fosdick, better known by his nom de plume Harry Castlemon, was a prolific writer of juvenile stories and novels, intended mainly for boys. He was born in Randolph, New York, and received a high school diploma from Central High School in Buffalo, New York. He served in the Union Navy from 1862 to 1865, during the American Civil War, acting as the receiver and superintendent of coal for the Mississippi River Squadron. Fosdick had begun to write as a teenager, and drew on his experiences serving in the Navy in such early novels as Frank on a Gunboat (1864) and Frank on the Lower Mississippi (1867). He soon became the most-read author for boys in the post-Civil War era, the golden age of children's literature.
Charles Austin Fosdick, better known by his nom de plume Harry Castlemon, was a prolific writer of juvenile stories and novels, intended mainly for boys. He was born in Randolph, New York, and received a high school diploma from Central High School in Buffalo, New York. He served in the Union Navy from 1862 to 1865, during the American Civil War, acting as the receiver and superintendent of coal for the Mississippi River Squadron. Fosdick had begun to write as a teenager, and drew on his experiences serving in the Navy in such early novels as Frank on a Gunboat (1864) and Frank on the Lower Mississippi (1867). He soon became the most-read author for boys in the post-Civil War era, the golden age of children's literature.