Tim Gregory

Frank and Joe Hardy search a mysterious castle for clues to a stolen, extremely valuable comic book.

FBI behavioral psychologist Daniel Clark has been made famous by his arguments that religion is one of society's greatest antagonists. What Daniel doesn't know is that his obsessive pursuit of a serial killer known only as "Eve" will end in his own d

It's a case of hidden identities for brother detectives Frank and Joe in the in the eighteenth book in the thrilling Hardy Boys Adventures series. The Hardy brothers and Frank's new girlfriend, Jones, are attending a local comic book convention on the shore. They meet up with Jones's friend Harper, a fellow comics super fan, on the boardwalk outside the convention. The four of them spend hours running from booth to booth and end the perfect day with...

The Aldens' friend Max says nothing interesting happens in Port Elizabeth. But when the children visit the small fishing village and come across a man snooping around the local library, they prove that every town has it's mysteries.

While exploring the caves around Dragon's Mouth Cavern, a series of unusual and somewhat frightening events convinces the Alden children that someone does not want them around.

Hidden behind the wall of their guest room, a mysterious journal leads the Aldens on a search for a valuable collection--

The Alden family rents a houseboat to drift down the river, and encounters a mystery in the little towns along the river, involving a fast black car.

Summer vacation on an almost private island gives the Aldens a challenge. Henry, Jessie, Violet and Benny used to live alone in a boxcar. Now, they have home with their grandfather and are spending the summer on their own private island. There is a mysterious stranger on the island with a secret --but that's not the only surprise in store for the Boxcar children

Henry, Jessie, Violet, and Benny become trapped in a cabin by an unexpected snowstorm, which turns into an even greater adventure when they help their neighbors, a baker and his family, recover an old family secret.

The Aldens head back to the Mystery Ranch for another summer! They are thrilled to learn their friend Mike has moved to Yellow Sands-a new town nearby. But when a house fire breaks out and Mike is blamed for starting it, the Aldens must find the real culprit to help their friend.