Join Frank and Joe Hardy in their thrilling adventure with The Hardy Boys - The Tower Treasure. When a daring robbery leaves their friend’s family in jeopardy, the Hardy brothers take it upon themselves to investigate. Clues lead them to a shadowy mansion and an ancient tower rumored to hold hidden treasure. Will Frank and Joe unravel the mystery in time to save the day?

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.

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

Three complete stories in one collection! This volume includes The Mystery Horse, The Mystery at the Dog Show, and The Castle Mystery.

Three complete stories in one collection! Includes The Mystery of the Singing Ghost, The Mystery in the Snow, and The Pizza Mystery.

Three complete stories in one collection! Includes The Mystery Girl, The Mystery Cruise, and The Disappearing Friend Mystery. In The Mystery Girl, Henry, Jessie, Violet, and Benny are working in a general store to help out a friend of Aunt Jane’s. It seems to the children that the young girl who works in the store is behaving very strangely. She seems nervous and won’t answer any questions about her past. Then a strange man comes to the store asking about her. What secret is the mystery girl hiding?

This bundle includes The Vanishing Game and Into Thin Air.

This volume includes: The Animal Shelter Mystery, The Old Motel Mystery, and The Mystery of the Hidden Painting. In The Mystery of the Hidden Painting, the Aldens find a mysterious painting hidden in the attic. The children learn that it is a portrait of their grandmother, whom they never knew, wearing the necklace Grandfather gave her when they were married. The necklace disappeared on their first anniversary - and was never found. Can the Boxcar Children track down a necklace missing for so many years?

Three complete stories in one collection! Includes The Chocolate Sundae Mystery, The Mystery of the Hot Air Balloon, and The Mystery Bookstore.

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.

Join Frank and Joe Hardy in their thrilling adventure with The Hardy Boys - The Tower Treasure. When a daring robbery leaves their friend’s family in jeopardy, the Hardy brothers take it upon themselves to investigate. Clues lead them to a shadowy mansion and an ancient tower rumored to hold hidden treasure. Will Frank and Joe unravel the mystery in time to save the day?

Franklin W. Dixon was a pseudonym used by several authors writing series books for the Stratemeyer Syndicate, including The Hardy Boys and the Nancy Drew series. This collection introduces The Hardy Boys, two teenage brothers who hope to follow in the footsteps of their father, a famous private detective: In The Tower Treasure, The House On The Cliff, and The Secret of the Old Mill.

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

This bundle includes The Vanishing Game and Into Thin Air.

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