Determined to learn the secret of the old mill, Frank and Joe employ a clever use to gain entrance and become trapped. There they unravel two mysteries, one involving a counterfeiting case and the…
When Mr. Hardy disappears while investigating a mystery surrounding a vacant house rumored to be either haunted or an abode for criminals, the Hardy Boys search for the truth.
In tracing some stolen gold the trail leads the boys to an abandoned mine, and there things start to happen. --This text refers to the Hardcover edition.
When the Hardy Boys eagerly agree to assist their friend Jack Dodd and his father in locating a family treasure, the two young detectives are unaware of the baffling complications that will arise.
When the Hardy boys reached the caves, they came unexpectedly upon a queer old hermit.
When the Hardy Boys are able to locate Mr. Jefferson's stolen car, he rewards the duo with a stay on his deserted island. While there, the sleuths are asked to help solve two lingering mysteries.
Two of the Hardy Boys's chums take a motor trip down the coast. They disappear and are almost rescued by their friends when all are captured. A thrilling story of adventure.
Nancy believes her friend’s guardians are trying to steal her inheritance. As she investigates, she has a perilous experience near the deserted bungalow.
A special treat for Nancy Drew fans! Out just in time for Nancy's 80th anniversary, we're releasing a limited number of copies of The Secret of the Old Clock, the first book in the series. It's the…
When boy detectives and brothers Frank and Joe Hardy are falsely accused of robbery, they attempt to clear their names by catching the actual thief.