Kate Messner

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.

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.

Ranger, a golden retriever, could have been a great search-and-rescue-dog except for the squirrels--but one day he unearths a mysterious box and finds himself transported back to the year 1850 where his faithful service is really needed by a family traveling west along the Oregon Trail.

Gianna Z has less than one week to collect, identify, and creatively display 25 leaves for her science project-or else she won't be able to compete in the upcoming cross-country sectionals race. As the deadline for her leaf project draws near, life keeps getting in the way. Some things are within Gee's control, like her own procrastination, but others aren't, like Biana Rinaldi's attempts at sabotage and Nonna's declining health. If it weren't for...

Ranger, the time-traveling golden retriever, has landed in Viking age Iceland, where he meets a girl named Helga, who seems perfectly able to take care of herself--until an erupting volcano and an early arriving baby forces Ranger and Helga to journey through the ash and smoke to find her father and bring him home.

When the new fish in class criticizes everything and tries to bully the other students, Sea Monster needs to think of a way that everyone can play together and get along.

Head-to-head combat! Astounding weapons! Extraordinary skills! Within the pages of this book, 18 awesomely real superheroes and supervillains come to life, each possessing powers far beyond the average insect. Meet the Malevolent Mimic, who wickedly disguises itself as a harmless pink orchid, only to shred unsuspecting butterflies! Or the Great Glue Shooter, who can shoot a smelly glue—from its face! Award-winning nonfiction author Kate Messner...

Galápagos giant tortoises are fascinating—and endangered. They live only on the Galápagos Islands, a chain of volcanic islands in the Pacific Ocean off the coast of Ecuador. These tortoises face threats from the humans who live on—and visit—the islands, as well as from Earth's warming climate.

Join author Kate Messner on an a journey to the Galápagos Islands to see these incredible creatures up close and discover how cutting-edge

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"Under the canopy of the rainforest, hundreds of animals make their homes--from the slender parrot snake to the colorful poison dart frog. But up in the trees hides a whole other world, where toucans and pale-billed woodpeckers chatter and call, capuchin monkeys swing from the vines, and sleek-furred jaguars rule the night. In this exuberant book, discover the wonder and activity that lie hidden among the roots, above the winding rivers ... and under...

Ranger the time-traveling Golden retriever was trained for search-and-rescue and even though he did not pass the tests he has used his training on his many trips to help people caught up in disasters; now he has arrived at the World Trade Center on the morning of September 11, 2001 just as the first plane hits, and he must rescue fifth-graders Risha and Max who are trapped in the wreckage, guide them to safety, and hopefully reunite them with Risha's...