Join Frank and Joe Hardy on their very first mystery adventure in The Tower Treasure! When a daring robbery leaves their friend’s family in dire straits, the Hardy boys take it upon themselves to uncover the truth and clear his name. Their search leads them to hidden clues, suspicious characters, and a mysterious old tower that holds secrets of its own.

This bundle includes Peril at Granite Peak and The Battle of Bayport.

This bundle includes The Vanishing Game and Into Thin Air.

Something is not right in Bayport. After a series of unfortunate (yet harmless) pranks, it looks like Frank and Joe have caught their suspect surprisingly early. Their classmate, Seth Diller, has taken his love of filmmaking a bit too far. But shortly after Frank and Joe confront Seth, there are fresh outbreaks of Seth-like pranks. Except these aren't as harmless. After a bit of investigating, the Hardy Boys uncover evidence of the Red Arrow - a group that will stop at nothing to bring chaos and crime to Bayport's peaceful existence.

Three complete stories in one collection! Includes The Pumpkin Head Mystery, The Cupcake Caper, and The Clue in the Recycling Bin.

Three complete stories in one collection! Includes The Mystery of the Haunted Boxcar, The Clue in the Corn Maze, and The Ghost of the Chattering Bones.

This bundle includes The Great Detective Race, The Ghost at the Drive-In Movie, and The Mystery of the Traveling Tomatoes.

This bundle includes Secret of the Red Arrow and Mystery of the Phantom Heist.

This bundle includes Mystery of the Midnight Rider and Once upon a Thriller.

This bundle includes Curse of the Arctic Star and Strangers on a Train.

This bundle includes Shadows at Predator Reef and Deception on the Set.

Dear Diary...Bess, George, and I are actually in Alaska! Everywhere you look, there are massive mountains and sparkling, deep-blue waters. We're on the maiden voyage of the Arctic Star luxury cruise ship, and my old friend, Becca Wright, the assistant cruise director, needs our help. She received threatening emails before even setting sail; then a bloody body turned up in the swimming pool.

Three complete stories in one collection! This volume includes The Mystery at Skeleton Point, The Tattletale Mystery, and The Comic Book Mystery.

Three complete stories in one collection! Includes The Spy Game, The Dog-Gone Mystery, and The Vampire Mystery.

Three complete stories in one collection! Includes The Mystery of the Stolen Sword, The Basketball Mystery, and The Movie Star Mystery.

This bundle includes Secret of the Red Arrow and Mystery of the Phantom Heist.

This bundle includes Peril at Granite Peak and The Battle of Bayport.

Join Frank and Joe Hardy on their very first mystery adventure in The Tower Treasure! When a daring robbery leaves their friend’s family in dire straits, the Hardy boys take it upon themselves to uncover the truth and clear his name. Their search leads them to hidden clues, suspicious characters, and a mysterious old tower that holds secrets of its own.

This bundle includes The Vanishing Game and Into Thin Air.

Something is not right in Bayport. After a series of unfortunate (yet harmless) pranks, it looks like Frank and Joe have caught their suspect surprisingly early. Their classmate, Seth Diller, has taken his love of filmmaking a bit too far. But shortly after Frank and Joe confront Seth, there are fresh outbreaks of Seth-like pranks. Except these aren't as harmless. After a bit of investigating, the Hardy Boys uncover evidence of the Red Arrow - a group that will stop at nothing to bring chaos and crime to Bayport's peaceful existence.