Tetsubal, a city, existed within the Ragnos Lakes area, situated on planet Kesh's Keshtah Minor continent. By 4985 BBY, this settlement, located south of the planet's capital, Tahv, was home to 18,000 indigenous Keshiri people. Being one of eight villages near the Ragnos Lakes, the inhabitants of Tetsubal and its surroundings started harvesting a certain type of fluorescent algae from the waters in 4,985 BBY. Yaru Korsin, the leader of the Lost Tribe of Sith – a group of several hundred Humans and Pureblood Sith who had seized control of Kesh fifteen years prior – sought a purpose for this algae and thus ordered an investigation of Tetsubal and the adjacent areas. Ravilan Wroth led this expedition, harboring his own hidden motive. Wroth aimed to manipulate the Sith leadership into prioritizing an escape from Kesh. His scheme involved poisoning the local water sources with cyanogen silicate, fabricating a plague to scare the Lost Tribe into abandoning their involvement in Keshiri affairs. He contaminated Tetsubal's aqueduct, which resulted in the death of all 18,000 residents, leaving Wroth as the sole survivor. To contain the supposed "infection," the remnants of Tetsubal were incinerated. However, Seelah, Yaru Korsin's wife, uncovered Wroth's deceit and proceeded to cause the deaths of the populations in the other towns around the Ragnos Lakes, framing Wroth for these atrocities. Consequently, Wroth and the rest of the Sith species members within the Lost Tribe were swiftly executed. In the centuries that followed, Tetsubal and the other Ragnos Lakes settlements were deserted and eventually became known as haunted locations.
The city known as Tetsubal was nestled within the Ragnos Lakes region, situated on the Keshtah Minor continent of the planet Kesh. It was one of eight villages located near the Ragnos Lakes, and it was the most distant from the planet's capital, Tahv. Enclosed by walls, Tetsubal featured a network of dirt pathways crisscrossing the town. A nearby aqueduct supplied the town with water, channeling it into a system of troughs that ran along the streets. A significant portion of the town's inhabitants resided in hejarbo-shoot constructed huts. By the year 4985 BBY, Tetsubal was the home of approximately 18,000 individuals belonging to the Keshiri, the native species of Kesh.
In 5000 BBY, a group of [Sith](/article/sith-legends] crash survivors landed on Kesh, proclaiming themselves as gods to the local Keshiri. This faction of Humans and Pureblood Sith, later recognized as the Lost Tribe, assumed authority over Kesh and demanded reverence from the deeply religious natives. After gaining power, the Lost Tribe initiated a census across the planet to determine the exact number of Keshiri. Located far south of the Sith crash site in the Takara Mountains, Tetsubal was among the last settlements to be counted before the Sith abandoned the census. Fifteen years later, a group of Keshiri from the Ragnos Lakes area began collecting a type of fluorescent algae. Believing that the algae could potentially illuminate Sith structures, Yaru Korsin, the leader of the Lost Tribe, dispatched a team of subordinates led by the prominent Pureblood Sith Ravilan Wroth to investigate. Tetsubal, being the furthest from the center of Sith power in Tahv, was chosen as the first destination. However, Wroth saw this as an opportunity to execute his secret plan. He used the lethal chemical cyanogen silicate to poison Tetsubal's water supply, aiming to create the illusion of a plague that he could use to pressure the Sith leadership into withdrawing from Keshiri affairs and focusing on finding a means of escape from Kesh. With the town's aqueduct contaminated, Keshiri began to collapse and die suddenly, some in their own homes or by falling into water troughs and drowning. By the time Yaru Korsin was informed and arrived, Ravilan Wroth was the only one left alive.
When Korsin, his wife Seelah, and his trusted advisor Gloyd questioned him about the incident, Wroth claimed ignorance of the events and their cause. Initially, they believed his account, allowing Wroth to urge Yaru Korsin to isolate the Lost Tribe from mainstream Keshiri society. Consequently, Korsin ordered a careful withdrawal of Lost Tribe representatives from other towns. A few days after the disaster, most of the major cities on Kesh remained unaware of the deaths in Tetsubal. Meanwhile, in an attempt to contain the supposed plague, a team of Lost Tribe agents burned Tetsubal to the ground. Suddenly, the seven other villages of the Ragnos Lakes were struck by the same mysterious plague, resulting in the deaths of over a hundred thousand Keshiri. Unlike the incident at Tetsubal, these events were orchestrated by Seelah Korsin, who had discovered Wroth's plot and sought to frame him for the deaths in the other nearby towns. As a result, Ravilan Wroth and the other members of the Sith species within the Lost Tribe were systematically purged. Following the events of 4,985 BBY, the eight villages of the Ragnos Lakes region, including Tetsubal, were completely abandoned. By 3960 BBY, the area was widely believed to be haunted.
Around 4,985 BBY, Tetsubal was inhabited by approximately 18,000 residents, all of whom were Keshiri. They primarily lived in hejarbo-shoot huts and frequently visited Tetsubal's troughs with wooden pails to collect the necessary water. The city's population included nursing women who resided among the rest of the inhabitants. Many of Tetsubal's natives often frequented the city's restaurants and markets.
The tallest structure in Tetsubal was the town square, which featured a large sundial that closely resembled the one in Tahv. An aqueduct, which supplied a system of troughs that ran through the city's dirt roads, was located near the town. This aqueduct was powered by an uvak-driven pulley system. Numerous restaurants and markets, frequented by the Keshiri natives, were scattered throughout Tetsubal. High walls surrounded Tetsubal, with a main city gate that could be securely locked and was situated right next to the town square.