Eva Thorne, real name Mary Perkins, was a corporate "Fixer" at one time employed by the DoD for Global Dynamics to increase their profits. During the events of From Fear to Eternity she was revealed to have been a Eureka founder, and over one-hundred years old. She was the sister of lead scientist Jimmy Perkins in developing the atomic bomb, but, during the first ever test, created a byproduct dubbed "Element X". When Jack Carter questioned this saying the first tests were in Los Alamos, she replied, "They learned from our mistakes and went with plutonium". Element X caused the scientists to age and die in a month, while the speed of Thorne's aging slowed exponentially. Her current location (and identity) is unknown, having escaped custody of the DOD and fled Eureka with the help of Henry