Books published by publisher Tumblehome, Inc.

A harem of takhi—Mongolian wild horses—has wandered out of a national park and into danger. Engineering boy genius Wheaton and his naturalist cousin Stowe shuttle to Mongolia on this second mission for ResQ, their organization to save endangered animals. Against wolves and weather, by helicopter and on horseback, and helped by their new Mongolian friend Sarnai, they struggle to guide the lost horses back into the park before winter sets in.

Finalist:2016 Foreword Reviews, INDIES Book of the Year, Juvenile FictionIt’s an action-packed heart-tug with a good sprinkle of humor as twelve-year old Gus whose struggle to cope with his older brother’s death has left him fearful is drawn into hunting for pirate treasure with a feisty girl and a zany movie prop creator. But, on the Florida island where Gus is spending the summer, there’s something even more valuable than gold—a wild panther cub. The National Wildlife Federation reports less than 100 Florida panthers remain living wild and free. Will Gus regain his courage in time to save the cub from poachers? And will Gus and his band of treasure hunters solve the mystery of the pirate’s map he discovered to dig up Gasparilla’s buried gold? There’s a lot at stake and only a summer to make it happen.

Mosquitoes don't bite Nala Simiyu. It's part of who she is, like being a half-Kenyan seventh-grader whose mother is in a wheelchair. But when a schoolmate's father--who happens to head up a large drug company--learns of Nala's special power, the excitement begins. After helping out with mosquito research, Nala has the chance to travel to Kenya to investigate mosquitoes' reactions to her father's family. All goes well until a man heartbroken by his daughter's death from malaria kidnaps Nala. In the midst of a realistic adventure story, this book will introduce young readers to such dilemmas as health disparities, subtle racism, and who owns biological information. Brave, fallible, compassionate and spirited, Nala is a strongly relatable character in a loving, imperfect family.

How do Adelie penguins live and adapt to the changing climatic conditions of Antarctica? The author relates 10 years of observation, tracing the story of one penguin she calls Joey. Children will relate to both the penguins and the author's sense of adventure as she becomes an expert penguin scientist. Richly illustrated with photos taken on-site at the research station in Antarctica.

With time travel and mysteries that need solving, the Galactic Academy of Science (G.A.S.) series instructs readers on how to think like scientists. Under the guidance of a Dude or Dudette from the future, the middle school characters are faced with treacherous, present-day crimes that require a historical knowledge of science in order to be solved. From investigating problems to analyzing data and constructing explanations and solutions, this series blends elements of sci-fi with educational methods that distill the key thinking habits of scientists and engineers. Medical science combines with mystery in this G.A.S. adventure about concussions Is the awkward stranger taking bribes to throw games? When Clinton hits his head in the championship soccer game, the stranger gets him benched, and Clinton’s team loses. Determined to nail the bribe-taker, Clinton and Mae take on a new G.A.S. mission—a journey across three continents and 4,000 years to learn about concussion and the brain.

Finalist:2016 Foreword Reviews, INDIES Book of the Year, Juvenile FictionIt’s an action-packed heart-tug with a good sprinkle of humor as twelve-year old Gus whose struggle to cope with his older brother’s death has left him fearful is drawn into hunting for pirate treasure with a feisty girl and a zany movie prop creator. But, on the Florida island where Gus is spending the summer, there’s something even more valuable than gold—a wild panther cub. The National Wildlife Federation reports less than 100 Florida panthers remain living wild and free. Will Gus regain his courage in time to save the cub from poachers? And will Gus and his band of treasure hunters solve the mystery of the pirate’s map he discovered to dig up Gasparilla’s buried gold? There’s a lot at stake and only a summer to make it happen.

An anonymous note in the middle of the night, an obituary for a banker who died in a hailstorm, and a mysterious woman vanishing down the stairwell: these clues lead Henry Alabaster and his uncle Kelvin McCloud to a spooky mansion in a coastal town. As a weather detective, Kelvin knows a thing or two about hailstorms, and then strange events surrounding the banker's death suggest foul play. Henry teams up with the fiery, artistic Rachel to help his uncle investigate, and they learn a lot about weather on the way. Nothing—not a thunderstorm, threats, burglary, a baseball bat-wielding suspect, nor even a devastating fire—can keep Henry and his team from chasing down the truth.

With time travel and mysteries that need solving, the Galactic Academy of Science (G.A.S.) series instructs readers on how to think like scientists. Under the guidance of a Dude or Dudette from the future, the middle school characters are faced with treacherous, present-day crimes that require a historical knowledge of science in order to be solved. From investigating problems to analyzing data and constructing explanations and solutions, this series blends elements of sci-fi with educational methods that distill the key thinking habits of scientists and engineers. On a museum visit, Benson and Anita meet a famous paleontologist showing off his newest fossil find: a missing link between dinosaurs and birds. But something doesn't feel right. Then a Dude from the future sends them back in time to visit an ancient Chinese scientist, dig a huge sea monster out of a cliff, and outwit a fossil thief. Benson and Anita need to root out and expose a fraudulent fossil.