Mystery of the Melted Diamonds by Carol Farley, 1986.

This is the last book in the Kipper and Larry mystery series.

This time, Larry has come to visit Kipper and his family on their farm in Kansas while his father attends a police convention in Florida and will be spending Christmas with them. At first, Kipper thinks that Larry probably regrets this visit because Kansas isn’t very exciting, and it’s snowing while Larry’s father is in sunny Florida.

The situation gets worse when Kipper gets into a fight with his friend Scooter when Larry and Kipper were supposed to be spending the night at Scooter’s house. Scooter apparently cheated at a game, and Kipper got so mad that he said that he and Larry would just go home. The problem is that the boys have to walk a couple of miles to reach the farm where Kipper’s family lives, and the snow has turned into a blizzard.

The boys start to get scared that they might freeze to death when Larry spots a light from a house nearby and heads toward it. Kipper thinks that it’s a dangerous mistake because the house with the light is the old Morgansterne house, and it’s been empty for years. However, when the boys reach the house, there are oil lanterns burning in the windows and a fire in a wood-burning stove. Out of desperation, the boys let themselves into the house to warm up, but then they start to wonder who lit the fire and the lanterns. They search the house to see if there’s anyone there, but they don’t find anyone. The only thing they find upstairs is an old box of Christmas ornaments.

The boys spend the rest of the night in the house without seeing anyone and continue to the farm in the morning. When they explain to Kipper’s mother what happened and where they spent the night, she’s concerned, both because the boys were out in the snowstorm and because nobody should be in the old Morgansterne house. Old Miss Morgansterne, who owns the house, has been living in a retirement home, and no one else is supposed to be there. Kipper’s mother decides to call the sheriff and have him look into it.

The sheriff comes and questions the boys about what they saw in the house, and they ask him about a robbery at a jewelry store in town that the family heard about on the radio while waiting for him to arrive. Larry wonders if there’s a connection between the robbery and the supposedly empty house that seemed to be occupied by someone before they arrived. The sheriff doesn’t see why there would be a connection between the two events, but Kipper’s younger brothers think that maybe the robbers were in the house the whole time, hiding in some kind of secret passageway, like in books and movies. The sheriff thinks that the boys have overactive imaginations.

However, there is more to the theory that the house and the robbery are connected than the sheriff thinks. Soon, the sheriff is alerted that the car that is believed to belong to the robbers has crashed into a pond near a dangerous curve in the road and the two men inside the car are dead. When they search the car, they find some of the jewelry from the robbery, the less expensive costume jewelry, so it seems that they were correct that these men were the robbers, but strangely, the most expensive jewels from the robbery, diamonds, are still missing. The sheriff says that it’s almost like they melted away, like the diamond-like snow that Larry commented on earlier.

It makes sense to the boys that the robbers were in the Morgansterne house before they were. They remember seeing a car like the robbers’ car along that road before the snow storm got bad, and it would explain why the house was empty all that night. The robbers accidentally saved the boys’ lives by lighting the stove in the house for them, but they never returned to their hideout in the empty house because they had their car accident. But, somewhere along the way, the diamonds they stole seem to have vanished. Can the boys figure out how?

The book is available to borrow and read for free online through Internet Archive.

My Reaction

Overall, I liked the story. I had more than one theory about where the diamonds were, and one of them turned out to be correct, but there was enough doubt in my mind to keep the story interesting until the end.