Twelve-year-old Ava finds an old pencil in her family's junk drawer and discovers, during a math test, that it will answer factual questions, so she and her best friend Sophie have a great time--and Ava grows in self-confidence--until the pencil reveals a truth about her family that Ava would rather not know.

Believing his long-absent father is missing and leaving clues behind through geocaching, Zig, thirteen, relies on his love of electronics, a garage sale GPS unit, and his best friend, Gianna, to search for answers.

The mysterious box that Ranger the golden retriever found in the garden transports him back to first century Rome, where he must rescue Marcus, a young servant boy, and Quintus, a volunteer gladiator, from the brutal world of the Colosseum.

"A book of insects, with a focus on their 'super powers'--their extraordinary and very real abilities--and an art/design style that evokes comic-book-hero-and-villain awesomeness. The book will include profiles of the animals and their powers, mixed with spreads that compare, contrast, and pit the insects against each other in a kind of 'who would win??' action format. Head-to-head combat! Astounding weapons and abilities! Awesomeness! Plus: science."--...

"In 1492, Christopher Columbus sailed across the ocean and discovered America. Right? Wrong! Columbus never actually set foot in what is now the United States. His voyages took him to islands in the Caribbean and along the coast of South America. The truth is, when Columbus first arrived, Indigenous peoples, including the Taino, had been living there for thousands of years, raising their families, running their societies, and trading with their neighbors....

This time the mysterious box that Ranger the Golden retriever found transports him to a Maryland plantation before the Civil War, where he must help a young house slave named Sarah and her younger brother Jesse find their way to the underground railroad and North to freedom, before Jesse is sold to a plantation further South.

Summary: For five hundred years the Jaguar Cup, sacred to the Silver Jaguar Society, was hidden in a cave on the coast of Costa Rica--so when a fake copy shows up on display in America, it is up to José, Anna, and Henry, junior members of the society, to travel to Costa Rica and rescue the real cup from thieves.