Thei's mother was a female Human farmer living on Nam Chorios, mother of Thei. When Thei was five years old, she and Thei rode her cu-pa Sparkle from their farmstead to Ruby Gulch. Two days later, only Thei returned with no memory of what happened.
Years later, Thei started experiencing emotional breaks whenever she smelled topato soup. She underwent treatment under Taru Durn, a Theran Listener, and her repressed memory of her last moments with her mother was discovered. Thei and her mother ate a meal of topato soup and later spent the night on a cave during their trip, but the cave ground wasn't able to support Sparkle's weight and it collapsed, plunging Sparkle into a hole full of drochs. Thei's mother went to investigate and fell into the hole as well. Thei witnessed their deaths before running away.
- Fate of the Jedi: Conviction (First appearance) (Vision)