Brom and Eragon searched the shipping records of Teirm to track down the whereabouts of the Ra'zac, who were responsible for Brom's previous injuries and had information about the Varden's plans. They hoped to locate the Ra'zac's ship and find clues to their next destination.
Joed lives in Teirm.
In Christopher Paolini's novel "Eragon," when Eragon was sent away so Brom and Jeod could speak alone, he explored the surrounding area near Jeod's house. Eragon stumbled upon a hidden room where he discovered valuable information about the Varden and the Urgals. He also found a hidden cache of weapons and supplies, which proved to be crucial in their later battles. Eragon's curiosity and resourcefulness during this time showcased his growing skills as a Dragon Rider.
The overall setting is Alagaësia. Alagaësia is broken down into smaller areas such as the Spine, Hadarac Desert, Teirm, Carvahall, Helgrind, Farthen Dûr, Surda, and several others. It is a fictional world, but the time is similar to our middle ages. There is no electricity, people live in villages, food is grown or hunted, and travel is mainly on foot or by horse back.
The plot of the book Eragon is that a poor farm boy named Eragon discovers, unknowingly, a dragon egg. The female dragon hatches and he names it Saphira. Eragon believes his worst problem is keeping Saphira a secret but he is soon whirled into a world of betrayal, adventure, and loss.