Sojourner Hooper-Agogô, originally Kelsey Hooper and for a time Cousin Ceol, was once a member of Faction Paradox.
Before joining Faction Paradox, she lived in London near Sarah Jane Smith and befriended Maria Jackson. (TV: Invasion of the Bane)
Little Sister Ceol took part in Godfather Starch's contest, in which a group of Little Sisters and Little Brothers completed challenges, competing for which one would become a Cousin. She was stalked/haunted by her clingy ex-boyfriend Ryan, a priest with a face made of exploding glass. She joined the Faction because she was desperate to get rid of him. When she beat Little Brother Dominic and became a Cousin, she used her shadow to kill Ryan. (PROSE: Now or Thereabouts)
She escaped Faction Paradox by faking her death, reconstructing herself on a posthuman colony shortly before it was destroyed in a natural event. She then moved to Pluto, where she married Rex Agogô and led the rebellion against the Company and became new president of PROTEC. However, she was blackmailed into joining Christèmas' plan to sabotage the Chance Coteries, where she discovered her rebellion had been puppet-mastered by Scacia De Ren. (PROSE: Weapons Grade Snake Oil)
After death, she and L-Event were resurrected in the City of the Saved, where she became Lady President of one of the factions during the City's Civil War. (PROSE: A Hundred Words from a Civil War)