This a wonderful book and if you have not read the others in the series, you are missing out
This book is about Charlie Thorne , who is recruited by the CIA to find Einsteins Equation he nicknamed Pandora . The equation is highly dangerous and Charlie and her half-brother ,Darwin ,along with agent Milana Moon ,must get it before the terrorists do!!!
Great
It was really good. There's a whole series. 10/10 would recommend. u should read it.
Strong female lead.