Having finished his education at Blackstone School, Red Fox writes letters to his friend, Ellen, who is traveling in Europe, as he prepares to return to his family on the Nebraska plains.
As Stalin's purges and arrests increase, Sasha and his mother plan to leave Russia to join his father and older sister who have emigrated to Riga, Latvia.
Cody and his friend Maria find themselves in the middle of several mysteries as they search for a missing emerald necklace.
Mysterious and dangerous things happen to Cody and Maria as they try to protect a stray cat that keeps vanishing.
Trying to juggle his job at "Taste of Italy" along with writing papers for school and his graduation requirement to volunteer at the Golden Oaks Retirement Home, class clown Derrick uses humor to get the jobs done.
Sasha tries to adjust to his new life in the United States, but his thoughts keep returning to the deepening troubles in his home country, Latvia, as Hitler's bombs fall on Riga in June of 1941.
David and his family travel back in time to 1880 to experience life in the American South as the Reconstruction era following the Civil War came to an end.
David and his family use his grandfather's time travel machine to go back in time to the Chicago World's Fair in 1893.
Kenneth and Aleesa, working on an extra credit project about Socrates, suddenly find themselves in ancient Athens, where they meet the famous philosopher and try to save his life.
Brothers Tim and Josh find themselves alone in the wilderness after surviving a plane crash in which the pilot dies and must make their way back to civilization.
While studying migrant farm workers of the 1960's, Kenneth and Aleesa travel back in time and meet Cesar Chavez during the farmworkers' strike for fair treatment and better pay. Can they protect Chavez and his dream for his people from sabotage?
Determined to identify the large four-legged creature sighted by Abe on a stormy night, the Koots find their first clue to be a hugh paw print.
The Koots investigate the appearance of a flying cloth-bound object that looks exactly like a mummy.
When Dog, Mr. Dodge's big cat, starts bringing home gifts resembling animal guts, the Koots set out to find the source of the gooey presents.
When strange things begin appearing on the school computers, the Koots set out to find the hackers.
The Koots try to discover who is behind the canned laughter that appears every time something goes wrong for one of the boys.
The Kooties Club solves a mystery involving the theft of a ring.
The Koots try to find answers to unexplained questions about an old car.
When the Koots decide to dig a hole in an abandoned lot big enough to house "The Kooties Club Cave," they are suprised to find an old rusty knife which leads to further excavations to uncover its still hidden victim.
Ty thought he was aware of all of his food allergies, but after he collapses on the sidewalk due to an allergic reaction, the Koots hope to find the cause of his illness by following food clues.
The Koots met on Gabe's front porch. They found out that Mrs. Gomez lost a very old vase, Mrs. Wu is missing a picture and Mrs. Prudy is missing a very old doll. "Wow, three things missing. I think we have a case," Ty said.
The Koots are on the trail of a counterfeiter after Ben and Toby are questioned by Officer Gomez about passing a fake twenty-dollar bill.
Ty and Gabe hear yelling and screaming and someone very bad laughing in apartment A-13.
Big Ben helps the Kooties Club members with their science projects.
The members of the Kooties Club try to figure out who is leaving the "I Love Elvis" signs throughout the neighborhood.