mystery and detective stories

The Berlin Wall has come down and a major American agent wants to come home and the boys are sent to pay his ransom. Meanwhile, Nancy comes to the aid of Beau, who is a prime suspect in a murder.

Nancy and the Hardy Boys conduct a manhunt for a pair of cat burglars they believe are after the crown jewels of Sarconne.

Nancy and the Hardy Boys uncover a scandal. Along with acts of sabotage, there is evidence of illegal steroid use by some athletes at the International Championship Games.

Nancy hikes into the Wyoming wilderness and soon must callon the Hardy boys for help. They find the mountain is the focus of a criminal enterprise. It is up to the three intrepid sleuths blaze a trail to safety.

Cliff's premonitions and dreams about a mysterious fire lead him and his friends into a fatal confrontation with perpetrators of a terrifying evil.

When Bayport is hit by a rash of vicious pranks, Frank and Joe investigate.

Belgian detective, Hercule Poirot is called upon to solve an archaeologist's wife's murder while she was on a dig in Iraq.

A disappearing floor, a savage-looking hound, a galloping ghost and a startling invention are just a few of the strange elements that complicate Frank and Joe's efforts to solve the mystery of the death of an heir to a mansion.

The disappearance of a wealthy young industrialist leads Frank and Joe to Mexico.