"The CIA plans to retaliate against a terrorist with a drone strike. But Zumi proposes that they capture Viggo the Vulture alive to gain information. The mission takes Invisible Six into the criminal underworld's darkest corners"--Title verso page.

"Charlie Thorne is a genius. Charlie Thorne is a thief. Charlie Thorne isn't old enough to drive. And now it's up to her to save the world... Decades ago, Albert Einstein devised an equation that could benefit all life on earth--or destroy it. Fearing what would happen if the equation fell into the wrong hands, he hid it. But now, a diabolical group known as the Furies are closing in on its location. In desperation, a team of CIA agents drags Charlie...