Ruth

Ruth was a citizen of "Atlantis", in truth an altered form of Earth in some unknown timeframe, and a priestess of the temple of Poseidon, who became a companion of Bernice Summerfield when she found herself stranded there. 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 a man called 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. (BFBS: 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 were 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 (BFBS: Private Enemy No. 1)

When confronted by the Epoch, she and Benny were forced to decide who among 3 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 as was scaring the locals (who this Ruth had become quite taken with). 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 someone where out there in space and time. (BFBS: 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, so 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. (BFBS: Brand Management)