David and his family use his grandfather's time travel machine to travel to 1853 Ohio, where they assist runaway slaves on their journey north on the Underground Railroad.
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?
The Smithers family find Grandpa's old time machine and decide to travel back to 1880 for their summer vacation. David and Jenny learn a lot about their heritage and history on their incredible trip.
David and his family meet William Henry Lewis, an African American football hero who travels to the future with them when he's injured.
This book presents the diary of Gertrud Schakat Tammen in which she recorded her experiences growing up in Germany during World War II and how her family lost their home and had to search for a new home and a new life.
This book presents the diary of Gertrud Schakat Tammen who grew up in Germany during World War II. This portion of her diary relates her experiences as World War II began.
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.
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.
Ty and Gabe hear yelling and screaming and someone very bad laughing in apartment A-13.
The boys investigate a new neighbor whom they think has a secret about the past and in doing so learn about Ben Franklin.
The members of the Kooties Club try to figure out who is leaving the "I Love Elvis" signs throughout the neighborhood.
The Koots decide to spy on Mr. Dodge to find the answers to unexplained questions about his blindness, state of health, and family situation.
Where do you live – in an apartment block, a townhouse, a cottage in the country? Sounds nice but it’s a bit ordinary, isn’t it? What if you lived somewhere really special – in a fairy tale castle with tall spires and steeples, for instance?
When Steward Edmund Rounds and Sir Cumference notice that there are strangers camped nearby, Rounds II decides to investigate despite being involved with the task of learning how to make accurate counts of the castle's stores of food, supplies, and weaponry. When he reports back that an enemy is lying in wait, everyone moves quickly to defend the castle. But wait! Will Rounds II be able to figure out how many bows and arrows they have to create an appropriate battle plan? Using rounding techniques to figure out the totals more quickly, Rounds II is just in time to help stave off a potentially disastrous attack
When Scratch Murphy's flea bag full of dough goes missing, Ace Lacewing is on the case. With friends Xerces and Zito at his side, Ace searches Six Legs Park for clues. From the Termite Tower of Terror to Queenie Bee's Hive Rise Honey Stand, the place is crawling with suspects.
When Queenie Bee goes missing, Ace Lacewing is hot on the honey trail. With his trusty sidekick, Sergeant Zito the Mosquito, Ace combs Motham City for clues. But the suspects are piling up, including Motham enemy number one, Al the Drone. Will Ace find Queenie Bee before it's too late? Moody illustrations capture the feel of film noir.