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.

Only the G.A.S. kids can stop an evil scientist who wants to enslave humans of the future

When a corrupt Dude from the future threatens to harm Sam’s mother unless he steals a zombie potion from his scientist father, Clinton and Mae know they have to help. This time-traveling journey on the science and history of death takes the G.A.S. crew to China, Italy, Belgium, Haiti, New Guinea, Arizona, and Indonesia. Along the way, Sam faces his greatest fears and grows braver, but when disaster threatens his father’s research camp, can he figure out how to save his father, outwit the evil Dr. G, and turn the tables on the bullies who have been tormenting him?