Frank and Joe Hardy find themselves involved in two mysteries in less than twenty-four hours when they are invited by Elroy Jefferson to spend Christmas vacation at his private retreat on Cabin Island

The search for a stolen boat leads the Hardy brothers to Mexico where they become involved with a band of Indians and a strange smuggling operation

After their father becomes ill while investigating suspected sabotage on a road being built in Kentucky, the Hardy boys carry on the investigation

Frank and Joe try to finally get to the bottom of the deadly scares taking place on the set of the reality TV show, Deprivation house, set in a huge Beverly Hills villa where every contestant is in extreme danger

Cryptic instructions left on the will of a deceased world-traveler lead Frank and Joe Hardy to the market place in Mexico City in search of clues

The Hardy brothers investigate injuries to students at the Rising Phoenix Martial Arts Center to see if they are connected and if someone at the school is to blame

"A medieval faire brings the past to life--and a mystery to the present--in this Hardy Brothers Secret Files adventure" -- "Frank and Joe Hardy are excited to visit the King Arthur Faire in Bayport. On Kid's Day, there are all kinds of special contests and events, like the Medieval Maze and Junior Jester Court Slam. The highlight of the day is the Junior Joust competition: whoever can stay on a mechanical horse and lance a golden ring with their...

When a college reporter, who was about to reveal secrets that would put a number of very important people in trouble, disappears in Atlantic City, Frank and Joe Hardy are assigned to find her before it's too late

Frank and Joe go to the island of St. John in the Virgin Islands to try to find the missing son of a UN ambassador

Frank and Joe travel to New Jersey where they investigate a series of robberies at jewelry stores