Ruth Leonidas Ruth Leonidas was a citizen of " Atlantis " , in truth an altered form of Earth in some timeframe , and a priestess of the temple of Poseidon , who became a companion of Bernice Summerfield when she found herself stranded there . Biography . Despite her calling , Ruth was secretly a " Historian " , someone who wanted to uncover the truth beyond the rule of the Great Leader , the entity that seemingly ruled Atlantis , who had outlawed any kind of history before Year Zero . Alongside Leonidas , Ruth helped Bernice begin to understand just what was going on around her , and the two became close friends after they defeated and destroyed the computer that Poseidon , aka the Great Leader , actually was . ( AUDIO : " The Temple of Questions " ) They tried to protect Benny from retribution against their act against " the gods " , only to be captured by the minions of the Epoch , the powerful entities behind what was really going on . Due to her spending time with Benny , and their questioning of the status quo , Ruth became immune to the memory reprogramming that was commonly performed by the Epoch amongst the populace . This helped her see the changes to reality that were going on around Atlantis , before she and Benny were captured by the Epoch . ( AUDIO : " Private Enemy No . 1 " ) When confronted by the Epoch , she and Benny were forced to decide who among three versions of themselves were actually real , and witnessed the death of one Benny and the almost demise of herself , until Benny switched that reality " off " . Before they could decide any further , Ruth began to remember moments from her " real " life , and grew very confused at the new memories and her existing ones . She then met another version of herself who had been stuck in Victorian England at the mercy of an alien who had taken the identity of Spring - Heeled Jack and was scaring the locals ( with whom this Ruth had become quite taken ) . Although they sent her back to that reality , they were unsure if she survived the journey due to the gateway closing prematurely . When Benny made the decision to erase their " reality " , in order to stop the Epoch from interfering anymore , Ruth seemingly sacrificed herself to secure Benny in an emergency hibernation unit , arguing that Benny had more to live for , with a son waiting for her somewhere in space and time . ( AUDIO : " Judgement Day " ) However , much to her surprise , she woke up on an alien world , in the 27th century , and tried searching for Benny , to no avail at first . Taking the name Leonidas as a surname , in tribute to her friend Leo , who had been taken over by the Epoch , she journeyed to the planet Lyndyaz . There , she found that Benny had somehow become part of their religion as a minor deity of sorts . She took up an archaeology class and was hired by the professor as an assistant . When he began work on a dig into a new site , she advised him to recruit an offworlder , hoping it would attract Benny ' s attention and bring her to Lyndyaz . ( AUDIO : " Brand Management " ) After this she accompanied Benny to Legion . Along the way she became a nun so that they could get the co - ordinates of legion . She couldn ' t sing and didn ' t like all the snooping to get there . She helped Marianne to discover who was behind the recent murders . ( AUDIO : " Bad Habits " ) She also was resourceful when the taxi that was taking them to Legion crashed , and she helped protect Benny and the others from Sand Roaches . She couldn ' t come to terms with the relationship between the human Dr Carol Bauer and the Killoran Yukon 9 . ( AUDIO : " Paradise Frost " ) When on Legion , she helped Peter Summerfield and Benny to explore the " Vesuvius " . She couldn ' t understand why Benny didn ' t like Irving Braxiatel . When she saw a dead body , she became sick . She noticed the discrepancies on the data for the cryo chambers , helping discover who committed the murder of Sheira Rynn . ( AUDIO : " Vesuvius Falling " ) She found Dorian Gray ' s portrait in Triptic House , and thought that the painting was looking at them . She was also the first to experience visions , when Jack made them participate in a seance around Dorian Gray ' s portrait . ( AUDIO : " Shades of Gray " ) She later wanted to know of Peter ' s boyfriend Antonio Tulloch . She wanted to be friends with him , and knew about the Deindum War . She found out that Antonio wasn ' t what he seemed . ( AUDIO : " Everybody Loves Irving " ) In a simulation from Benny ' s mind , when she was in Atlantis she was worried about not fitting in . This simulation then later helped Benny defeat simulations of her enemies from her memory . ( AUDIO : " Many Happy Returns " ) She joined Benny and Jack on the " Iverfield " on a post run . When they landed on Nemeqit they thought it was just a dead planet . She helped Benny discover the truth behind the missing people . She later swallowed a lot of dust . She realised that if there was an apocalypse people would remember the essential basics , but they wouldn ' t remember the rituals and the religions . ( AUDIO : " A Handful of Dust " ) She confronted Peter about the fact that Antonio wasn ' t real , which Peter thought was ridiculous . Avril Fenman later reminded her about her past life , before the Epoch ' s rewriting of time and memory . Ruth was part of a high class family who looked down upon the common people . During an uprising , Ruth killed her father and then asked her loyal servant to take credit , making her servant into a hero . She then asked that her servant kill Ruth ' s childhood friend in order to fake her death as Ruth made her escape from the planet . Learning this about her past made Ruth uncomfortable , but she eventually came to terms with it , realising that her present self was her new identity . ( AUDIO : " The Curse of Fenman " ) She accompanied Benny to Saravas as part of her entourage . She ended up doing the tea run by accident for Shepton Rothwell , which she despised . She was persuaded by a possessed Shepton that Jack and Benny were in a relationship . She became paranoid and thought that Benny wanted to kill her . She left Benny when the Epoch arrived . Benny forgot her . ( AUDIO : " Big Dig " ) She was taken by the Epoch as they thought she was what was causing the temporal instabilities around Benny and took her to their domain . She was then brainwashed into thinking she was an actor , called Ayesha Antoine , playing herself and a character called Brook . Benny managed to undo the brainwashing and defeated them . She then used the Epoch technology to find Leonidas . ( AUDIO : " In Living Memory " ) She became engaged to Jack . ( PROSE : " Big Bang Generation " )