Puzzle-crazy, twelve-year-old Winston and his ten-year-old sister Katie find themselves involved in a dangerous mystery involving a hidden ring. Puzzles for the reader to solve are included throughout the text.

While on summer vacation at the seaside, twelve-year-old Irene Adler meets the young Sherlock Holmes, and his friend Arsène Lupin-- and when a dead body floats ashore the three young friends set out to solve the mystery.

Ten-year-old Abby Ramirez, who is on the autism spectrum, has her hands full when an anxious German shepherd, Destiny, shows up at the Second Chance Ranch animal rescue. While Abby helps Destiny learn to trust people again, Abby has to learn to overcome old habits of her own.

Thirteen-year-old Christa's plans for her favorite holiday are derailed when her parents announce their divorce and Christa spends Christmas in Europe with her mom, but even though her dad remains in Chicago, he sends Christa on a scavenger hunt made up of dares that send her all over Florence, Paris, and London.

After being sold to a cruel couple in New York City, a slave named Isabel spies for the rebels during the Revolutionary War.

In 1969, as her own family is falling apart, ten-year-old Mamie finds comfort in conducting a one-sided correspondence with the least famous astronaut heading toward the moon on Apollo 11.

To gain leadership skills needed to run a cupcake-baking empire when she grows up, Brianna runs for president of the fifth grade--expecting little competition--until a new girl enters the race.