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.

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. The science of food safety combines with mystery in this G.A.S. adventure about an outbreak of foodborne illness When a cruise featuring a cooking contest turns into a disaster of vomiting passengers, seventh-grade G.A.S. trainees Mae and Clinton have a mystery to solve. With help from Selectra Volt, Dudette from the future, the two kids travel through time to learn about the science of food safety. Between journeys to the past, they investigate clues aboard ship. But when a storm comes, and conditions aboard the disabled ship become desperate, can Mae and Clinton discover the cause of the outbreak in time?

Dead fish are washing ashore on the Higdon River, and seventh grader Emily Sanders decides to find out why. Mocked by her fellow students and abandoned by her best friend, Emily investigates farms, a golf course, and local factories. Gradually she persuades friends to help her test the waters. Their investigations lead them into trouble with the law and confrontation with the town’s most powerful citizen. Can a handful of determined seventh graders find out the true source of the stink in the Higdon River?

A humorous, exciting tale of an ordinary girl who makes an extraordinary scientific discovery—a blind fish that walksWhen seventh-grader Alexis catches an unusual fish that looks like a living fossil, she sets off a frenzied scientific hunt for more of its kind. Alexis and her friend Darshan join the hunt, snorkeling, sounding the depths of Glacial Lake, even observing from a helicopter and exploring a cave. All the while, they fight to keep the selfish Dr. Mertz from claiming the discovery all for himself. When Alexis follows one final hunch, she risks her life and almost loses her friend. Walking Fish is a scientific adventure that provides a perfect combination of literacy and science.

When new computer-based codes threaten the International Science Fair, the G.A.S. kids go on an adventure through time to learn about codes and ciphers to save it.

Don't miss Enola Holmes: The Case of the Missing Marquess! Now a Netflix original movie starring Millie Bobby Brown, Henry Cavill, and Helena Bonham Carter! Enola Holmes--younger sister to Sherlock Holmes--is back on another case! (Cover may vary) Enola Holmes's landlady, Mrs. Tupper, is the closest thing Enola has to family these days, besides her occasional run-ins with her brother Sherlock. Even though Mrs. Tupper is nearly deaf and can barely cook, she's an endearing presence as Enola longs for her absent mother. So imagine her horror when Enola comes home to find Mrs. Tupper kidnapped! Who would take her, and why? And what does Florence Nightingale have to do with it? From the master of mystery Nancy Springer, here's another absorbing adventure for our award-winning, unstoppable heroine, Enola Holmes. Praise for Enola Holmes: The Case of the Missing Marquess: An Edgar Award Nominee! "Empowered, capable, and smart . . . [with] an impactful message that you can do anything if you set your mind to it."--Millie Bobby Brown, Stranger Things * "Enola shows herself to be an intelligent, rational, resourceful, and brave protagonist. Readers will look forward to hearing this heroine's unique voice again." --Publishers Weekly, starred review * "This is a terrific package. Springer not only provides two fine mysteries, breathtaking adventure, and key-eyed description, but she also offers a worthy heroine." --Booklist, starred review

After her landlady Mrs. Tupper is abducted, Enola wonders who would take her, and why? And what does Florence Nightingale have to do with it? Enola will put absolutely everything at risk to find Mrs. Tupper, in this latest mystery.