Unless otherwise stated, these rumours are each received randomly after winning a fight with the occupants of the Inn in the Ruins of Thallis.
Improving the Desert Artifact[]
Patrons of the Thallis Inn mentioned some kind of weird Imp, having a workshop in the Desolate Wastelands, being able to upgrade some ancient artifact called the "Desert Artifact", for a price.
Secret Cache[]
You have overheard a group of adventurers in one of Thallis' Inns talk about a secret stash they hid away inside Krolm's Anvil. Considering they are dead, and talk about retrieving it, there is a big chance it is still there.
Undead in Gar Uta?[]
You overheard some of the Inn visitors of a Thallis Inn talk about a potential undead outbreak in northern Gar Uta. They have heard rumours of a Paladin squad moving around the area trying to keep the peace.