What is Reddit's opinion of Imperceptible?

From 3.5 billion Reddit comments

Imperceptible

https://www.amazon.com/dp/B0BCX71Z8D

FREE until September 7th

> It turns out that invisibility is physics; it’s real, and I’ve found it.

>Sarah Castle’s life has been remarkable since a young age. Skilled in multiple languages, a natural photographic memory, and gifted in mathematics and physics, she began her Ph.D. at Georgetown, while still in her teens. Now, as a Georgetown Physics Professor, Sarah made the discovery of her life—the ability to become invisible. Using this extraordinary advantage, Sarah helps solve the CIA’s most unsolvable problems—all without revealing the secret of how she does it.

>Her success on the world stage alarms the Russians, who make her a target to find out how the Americans are pulling off the impossible. But Sarah sees another opportunity in her ability to operate unseen: the chance to avenge the deaths of her parents, who were murdered by Russian intelligence years before. This sets off a powerful sequence of events that takes her to Moscow in search of the truth. She just has to make sure of one thing: that no one sees her coming.