"They've activated a security system built into the ruins that could destroy us all. It's powered by two energy pylons. Archaeologist Jorn can explain."
"Once the system is fully charged, it will open a kind of portal just outside our camp. If that portal opens… I believe it'll mean disaster."
―A Republic commander and Jorn[src]

Jorn was an archaeologist who worked with the Galactic Republic during the Galactic War. When conflict broke out on the planet Seline over control of a Gree hypergate, Jorn was called in to provide expertise on the technology.