After having her planet taken over by the Rakata and their Infinite Empire, Trill was taken in as their slave at a young age. As a slave, she slept in the Rakatan slave quarters, where it was every slave for them self. When slaves weren't sleeping, they were expected to fight one another in gladiatorial-type matches in the Ring on the planet Byss. It was in the slave quarters where Trill met her fellow slave Xesh and the two formed an alliance to protect each other and never kill one another. Sometime later, she would be found Force sensitive and trained as a Force Hound in hopes of using her abilities to locate worlds rich in the Force. Her alliance with Xesh was short lived, however, as a few years later Predor Tul'kar would pit the two against each other for his own pleasure. As he overpowered her, Trill fully expected death, only to be denied that chance as Xesh proposed to Tul'kar that she should be given to Predor Skal'nas as a gift to become his new Force Hound and as an insult, as she was weaker than Xesh. It was due to this betrayal that Trill began to harbor feelings of anger and resentment against Xesh, hoping to one day enact her revenge on him.
Force Hound under Skal'nas
Under the service of Predor Skal'nas, Trill would use her abilities to locate many worlds for him to conquer, further helping him earn and keep his high position in the Rakatan ranks. One day on Byss, she would be able to sense a planet richer in the Force than any before, one that lay deep inside the Deep Core, but she couldn't find the exact location due to the anomalies around the travel routes that skewed her senses. Skal'nas called Tul'kar and his Force Hound Xesh into his compound and asked if it was indeed impossible to find the planet, as Trill had previously told him. Insulting Trill's skill, Xesh tells Skal'nas that he can find the planet, prompting Trill to charge at him in outrage. He would easily defeat her and head off to locate the hidden planet, Tython.
Once there, his ship crashes and Xesh loses his memory, causing him to forget to report back to Skal'nas. This sparks outrage from the Predor as he thinks Tul'kar is trying to steal the planet from him and claim it as his own conquest. Skal'nas tasks Trill to locating the Force Hound, and she sets off in her ship to the last known location of the ship in space. She uses her powers and her connection to Xesh to locate him and make her way safely into the Deep Core. She tracks him to the planet Kev Coeur but has to fight off its deadly creatures, cutting her off from finding him. She then finds Je'daii Journeyer Sek'nos Rath and saves him from a fall off a cliff, allowing him to jump onto her ship. Unfortunately, this damages her stabilizers and causes her to stop and repair her ship for a few days. When Rath wakes up, Trill hides her Force signature from him and tells him she's a Fortune Hunter, intending to befriend him and use his knowledge of the system to find Tython.
With her ship now repaired, Trill leaves Kev Coeur and allows Rath to contact his Je'daii friends, leading them to the planet Shikaakwa to confront Xesh and his new friend Daegen Lok. As she lands her ship, Trill and Rath buy a boat and take it to the Ryo Fortress, intending to sneak in quietly. Once there, they meet up with Rangers Hawk Ryo and Rori Fenn and sneak into the fortress through the sewer system. The group runs into the two escapees, Xesh and Lok, not soon afterward and while the Je'daii engage the two, Trill slips off to the side, not joining the fight as she's only armed with a blaster and wants to keep her cover. She tends to Rath as he gets knocked out by Xesh and when the fighting is done, she takes Sek'nos and his friend Shae Koda back to the healing facilities on Tython. Once there, she reports back to Skal'nas, informing him of the location of the planet, that his blocks on Xesh's memory are still intact, and that she intends to learn as much as she can about the system and keep an eye on Xesh doing so.
Invasion of the Infinite Empire
Now that he has the location of Tython, Predor Skal'nas prepares his fleet and invades the system, taking over the outlying planets in the system as he makes his way toward Tython and the inner planets. After a year, the Rakatan's and their forces have set up their man base on the planet Ska Gora and are attempting to take Shikaakwa before heading over to Tython. During this time, Trill has been fighting with the Je'daii and their allies while reporting back to Skal'nas, using just her blaster skills and keeping her Force signature in check. After a Je'daii victory on Shikaakwa, Xesh, Lok, and a few other Je'daii Masters come up with a plan to attack Skal'nas directly, as they were informed by Xesh that with him gone, the rest of the Rakatan forces would squabble for power amongst themselves and ultimately be their own worst enemy. Xesh uses his Force powers to find Skal'nas' base, and the Je'daii prepare their forces for an attack, thinking to catch him and his Flesh Raider soldiers (mutated Rakata bred for war) off guard. Trill comms Skal'nas though and informs him of the attack, which allows him to set up a trap where Flesh Raiders would use underground tunnels to entrap and surround the Je'daii and their forces. Trill is sent with the Je'daii forces, but manages to slip away and view the battle from afar. She then finds Xesh as he attempts to make his way into the command base through the underground tunnels and knocks him out with Force Lightning when he reaches the slave chambers powering the base.
She returns Xesh to Skal'nas who removes the barriers on his mind and causes his memories to come flooding back. Shocked by the horror of the things he has done and convincing himself the Je'daii wouldn't accept him if they found out, he once again allies himself with Skal'nas. He then informed him that Je'daii Seers were using the Force to predict future outcomes and that was why the Je'daii had been able to hold off and defeat the invading Rakatans and their forces, despite the invaders outnumbering the Je'daii and their allies. Trill is then ordered by Skal'nas, along with Xesh, to be a conduit of his power as he lashes out at the Je'daii Seers, cutting them off from the Force and blinding the Journeyer Tasha Ryo. The dark side energies given off by the attack empower the Flesh Raiders nd weaken the Je'daii, causing them to retreat back to Tython.
With a fresh victory under his belt and new found knowledge from the prisoner Daegen Lok, Skal'nas makes his way to Tython to find the Infinity Gate under Anil Kesh, a gate that can transport someone to any world they desire. Striking at the forces defending the moon Ashla, Skal'nas then directs Trill to lead his ground forces against the Temple, ordering them to capture and not destroy it. Trill is severally angered by this, as Skal'nas had chosen Xesh to be at his side to uncover the Infinity Gate instead of her and denounced her as his Force Hound in favor of her contemporary. She would take out her anger on the Je'daii's forces, leading the Flesh Raiders in an all-out assault on the Temple.
As she led her forces against Anil Kesh, he encountered her former lover Sek'nos Rath and Je'daii Master Quan-Jang, jumping in to engage the male Sith. Despite her confidence, Sek'nos would dominate her with Force Lightning after a short duel, throwing her unconscious body over his shoulder and taking her away. Not long after, Seer Tasha Ryo activated the Thor Yor in Anil Kesh, an ancient weapon that had transported the original founders of Tython to the planet, and used it to destroy the Infinity Gate and much of their armada in space. Skal'nas as well would be felled by Xesh, who had chosen to denounce the Rakata in favor of the Je'daii and the woman he loved, Shae Koda. The Rakata, as predicted, would fight amongst themselves and allow the Je'daii to defeat them and drive them from the system for good. Trill's fate, as it is, is unknown, but she was most likely to exile on Bogan.