Sibyl was the Zeltron spouse of Demagol, existing in the timeline between the Great Sith War era and the Mandalorian Wars. She participated in Demagol's experiments, which aimed to produce Force-sensitive offspring at his school situated on Osadia. Eventually, the couple had a daughter, who they named Chantique. Nevertheless, Wyrick displayed a greater interest in the Force-sensitive Arkanian children rather than his own offspring. Deeming her a disappointment, Wyrick intentionally handed Chantique over to The Crucible, a slaving syndicate. Overwhelmed by the sorrow of her daughter's loss, Sibyl took her own life.