Siblings Evan and Jessie must solve the mystery of a missing cherished family treasure while coming to terms with their beloved grandmother's unsettling behavior.

When money disappears from fourth-grader Evan's pocket and everyone thinks that his annoying classmate Scott stole it, Evan's younger sister stages a trial involving the entire class, trying to prove what happened.

Aiden works with the FBI in order to rescue his sister Meg, who was kidnapped. Where is Meg Falconer? Everybody wants to know. Her brother Aiden, who saw her kidnapped and is now trying to track her down, wants to know. The FBI, led by the very serious Agent Harris, wants to know. Her parents, who fear their pasts have something to do with why Meg was taken, want to know. Even Meg's kidnappers want to know. Because even though they caught her once,...

"Evan Treski is people-smart. He's good at talking with people, even grownups. His younger sister, Jessie, on the other hand, is math-smart--but not especially good at understanding people. She knows that feelings are her weakest subject. With just five days left of summer vacation, Evan and Jessie launch an all-out war to see who can sell the most lemonade before school starts. As the battleground heats up, there really is no telling who will win--and...

"In this tongue-in-cheek take on classic themes in children's literature, the four Willoughby children set about to become "deserving orphans" after their neglectful parents embark on a treacherous around-the-world adventure, leaving them in the care of an odious nanny"--Title verso page.

"Explores the distinctive power of poetry and love--fourth grade style"--

"Thirty years after their disappearance, the previously frozen Willoughbys have thawed out and returned from the Alps, to the consternation of their children and grandchildren"--Title verso page.

"Cooper is lost. Ever since his father left their family three years ago, he has become distant from his friends, constantly annoyed by his little sister, Jess, and completely fed up with the pale, creepy rich girl who moved in next door, who won't stop staring at him. So when Cooper learns of an unsolved mystery his sister has discovered online, he welcomes the distraction. It's the tale of a deadly train crash that occurred a hundred years ago in...

Eleven-year-old Otto wants a dog, and his older sister Lexi wants a cat, so their mother suggests that whoever can raise enough money to pay for their pet can choose--and so the competition begins.

Amy and Dan Cahill are no strangers to impossible tasks. After seven of their relatives were kidnapped, the siblings scoured Europe for the priceless artifacts Vesper One demanded in exchange for the hostages. But then the Cahill kids are given an assignment that pushes them to their breaking point, a journey to a legendary city. Amy and Dan know they can't afford to fail, yet they're running out of options and running out of time.