Charlie Thorne and the Last Equation

In this fast-paced, action-packed novel by Stuart Gibbs, young genius Charlie Thorne is thrust into a globe-trotting quest to locate a hidden Einstein equation that could change the world. With her extraordinary code-breaking skills, she team up with CIA agents to outsmart a dangerous group known as the Furies, all while navigating a perilous landscape where trust is scarce. The story combines intelligence, adventure, and high stakes as Charlie struggles to keep a powerful secret out of the wrong hands.