Lamar Public Library

Joe and Frank suspect there is a link between the counterfeiting case they are investigating, and the case their father can't discuss. Determined to learn the secret, the Hardy Boys get themselves into a scrape.

The Hardy Boys investigate a series of mysterious break-ins at a resort in North Carolina, which appear related to the theft of four giant gemstones from a museum.

Helping in a case their father is working on, the Hardy brothers try to find an informer who has telephoned from a booth in their home town, and are hired by a carnival owner to spot pickpockets.

Joe, Frank, and their friends search the icebound Cabin Island for a missing boy and some stolen medals.

The Hardy boys go to Paris with a soccer team and investigate when the team's stadium and the entire city are under attack from an unknown enemy.

On a trip to a Rocky Mountain resort, Frank and Joe see a strange green light in the sky followed by the disappearance of three people including Joe.

Chet Morton is kidnapped the first day of his new job driving an ice cream truck, and the Hardys must track down the kidnappers.

Frank and Joe Hardy's visit to their friend Chet Morton, a young man who has taken a job posing as a Viking in a historically authentic village in Minnesota, is marred by a saboteur who is set on displaying a more sinister side of the ancient culture--burning, looting, and terror.

After a dying criminal confesses that his loot has been stashed "in the tower", the Hardy boys make an astonishing discovery.,

When a book of baseball statistics disappears from the school library, Frank and Joe Hardy try to find the thief, but when the book turns up in Frank's backpack, Joe has to find who did before Frank is punished for a crime he didn't commit.