I stumbled upon 'Hidden Numbers' while digging for underrated sci-fi gems, and it blew my mind. The book is loosely inspired by real-life Cold War-era cryptographers and mathematicians, especially women like those portrayed in 'Hidden Figures.' But instead of NASA, it twists history into a speculative thriller—imagine secret codes buried in ancient manuscripts that predict global disasters. The protagonist, a disgraced linguist, deciphers them while dodging shadowy agencies. It’s like 'The Da Vinci Code' meets 'Snow Crash,' with a dash of feminist revisionism. The author clearly geeked out on obscure number theory, too—Fibonacci sequences and prime number patterns are plot devices. If you love brainy conspiracies, this one’s addictive.