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I read this book about 5 years ago (2017), in my fourth grade Southern California classroom (aged 9 to 10). I remember the word “Augmenter” being what the story was mainly about. I think some people were Augmenters.
I don’t remember whether it was hardcover or paperback. It couldn’t have been more than 300 pages, unless I misremember another book. It was written in English.
For anyone else who may be looking for this book, its name is The Quantum League: Spell Robbers
After Ben Warner is recruited to join a “science camp” led by the eccentric quantum physicist Dr. Madeleine Hughes, he quickly realizes it’s no regular science camp. Along with his new friend, Peter, Ben discovers the secret, powerful art of Actuation—the ability to change reality by simply imagining it differently.
When a mysterious group of men invade Dr. Hughes’s laboratory, abducting her and stealing her precious equipment, Ben and Peter are suddenly caught up in a turf war between dangerous actuators desperate for Dr. Hughes’s innovative technology. And as Ben and Peter are pulled into a perilous, hidden world full of impossibilities now made possible, will their combined powers be enough to save Dr. Hughes and vanquish their enemies before it’s too late?
This review mentions the "augmenter":
My name is Ben. You're an NA, so I won't try to fully explain what it means to be an actuator. I can make things happen with my mind; it's quantum physics, not magic. I've been recruited by the Quantum League, but I'm furious that they've detached me from my mom. She doesn't remember anything about me! Mr. Weathersky says they'll reattach her if I'll complete one mission. The Dread Cloaks have stolen a portable augmenter and have kidnapped Dr. Hughes to perfect it. This machine will become a powerful weapon in the wrong hands, and the leader of the Dread Cloaks is that man. The League says they'll return Ronin's daughter if he'll help me with my mission. I don't know if I can trust this criminal, and I don't know if I can trust the League either. They want me to convince the Dread Cloaks that I'm willing to become a double agent, but I don't know how to do it. Ronin tells me to improvise, so I guess that's what I'll do.
Could this be Madeline Dyer's Untamed, published in 2016?
Bolding is done by me
As one of the last Untamed humans left in the world, Seven’s life has always been controlled by tight rules. Stay away from the Enhanced. Don’t question your leader. And, most importantly, never switch sides--because once you’re Enhanced there’s no going back. Even if you have become the perfect human being.
But after a disastrous raid on an Enhanced city, Seven soon finds herself in her enemy’s power. Realizing it’s only a matter of time before she too develops a taste for the chemical augmenters responsible for the erosion of humanity, Seven knows she must act quickly if she’s to escape and save her family from the same fate.
Yet, as one of the most powerful Seers that the Untamed and Enhanced have ever known, Seven quickly discovers that she alone holds the key to the survival of only one race. But things aren’t clear-cut anymore, and with Seven now questioning the very beliefs she was raised on, she knows she has an important choice to make. One that has two very different outcomes.
Seven must choose wisely whose side she joins, for the War of Humanity is underway, and Death never takes kindly to traitors.
Found via a search for site:goodreads.com "called augmenters", which led me to this review.
