Dot the Diplodocus is puzzled by the strange behavior of her family and friends, but when she investigates she finds a trail of popcorn that leads her to an answer.

"No matter what anyone tells you, I'm real. That's what the note says that Max finds under his keyboard. He knows that his best friend, Josie, wrote it. He'd know her handwriting anywhere. But why she wrote it--and what it means--remains a mystery. Ever since they met in kindergarten, Max and Josie have been inseparable. Until the summer after fifth grade, when Josie disappears, leaving only a note, and whispering something about “whatnot rules.”...

Eddie and MJ use their awesome enchanted book to journey to Mexico, discover how Mexican culture has influences the English language, learn about local customs, and solve an exciting mystery.

When her best friend falls victim to a vicious hate crime, sixteen-year-old Cat sets out to discover the culprits in her small North Carolina town.

"When her best friend inexplicably goes missing, Jess retraces the life-changing summer they spent together and begins questioning everything she assumed she knew about her friend as she is forced to look back on the buried secrets they shared." --

"Travel through time with Luis, Casey, Tyler, and robot cat Steel! Using Tesla's time twister, the friends find themselves in ancient Egypt. There, they face an ancient curse, while trying to rescue Uncle Cyrus, who remains stuck in time!"--

Eddie and MJ are suddenly transported to India where they must use their word knowledge to solve a mystery and help their new friend Dev save his school.

Abby sees a strange blue-green light. Aliens? Electrical storm? Fog warning? She drags bestie Clara out to investigate after bizarre things start happening.

The jewel hunt continues as the girls set out to protect an emerald necklace belonging to a famous reality TV show star. But tensions are running high, and with celebrity stylists and TV crews everywhere, the Jewels are finding it hard to concentrate. It's not long before their friendship starts to suffer. Thankfully, the Jewels get help from a new top-secret ally. But will it be enough?

The "Jewels" of the Martha Washington Middle School team are focused on the upcoming quiz bowl in New York City but when they discover that the Atkinson Preparatory School Rivals may be planning a diamond heist, they set out to foil the theft.