Talmohkt was a planet covered by ice and snow. Tormented by an ice age which has lasted for thousands of years, this planet was similar to Hoth in several ways.
When a group of settlers crash-landed on this planet of ice, they believed to be alone. However, they had soon discovered the native Klith, a pacifist Force-sensitive race which communicates solely with telepathy. Over time, the settlers had established a new colony outside the primary one they co-existed with the Klith, Astkal, and named this new place Honbrus. Utilizing Astkal technology, Honbrus was protected by a dome, which simulated weather patterns for the inhabitants within.
Approximately three years after the Battle of Yavin, the Frozen Empire took control of the planet. In a desperate plea for aid, a Force-sensitive individual named Ulfik Nevekron projected a call for aid across the galaxy, and it found its way to a man named Cadden Blackthorne. Answering the call, Cadden, Trai Kanossi, Renalla Starrider, and Ryy'Suuk visited the world, crash-landing near Ice Peak, the home of the Nergeth. The curious, technologically-inclined Nergeth took the ship to their home, where they helped the group get it airborn before the Frozen Empire attacked, shattering Ice Peak. What remained of the small battle was nothing more than a broken mountain of ice.
Cadden and his companions traveled to Astkal, where they met with the Triad, and Ulfik. There, they began on their tasks to overthrow the Frozen Empire and bring peace back to Talmohkt. However, as events began to unfold, it was discovered that Ulfik was the emperor of the Frozen Empire, and had been using a computer to protray the perceived emperor the whole time. Soon, war erupted between the Triad and the Frozen Empire. It came to a closure at an imperial bunker outside Astkal's dome, about five hundred meters east. In the engagement, Cadden fought and defeated Ulfik, and manually set the charges needed to destroy the bunker. He barely escaped with his life. The imperial forces were rounded up by the Triad, and soon after a wounded and unconscious Cadden Blackthorne and friends left the world, in their repaired ship.
The planet continued to fend for its own, struggling to rebuild its former glory, until a creature named Klatonn came around, and re-established the Frozen Empire. Once again, Blackthorne appeared on the scene, and destroyed Klatonn, but at the price of Blackthorne's fall to the Dark Side. With another Dark Jedi named Carth Dyral, the Frozen Empire thrived for several months, until Trai Kanossi returned to the scene and helped planetary rebels defeat the empire. Cadden staged his own death in orbit, and escaped, and Carth later left the world on his own accord.