He first starts the Archivist Guild as a covert operation. Thalion and a few other intellectuals collect and memorize important texts, teachings, and histories. They also copy down Elven laws and regulations, not just to keep records but to look for loopholes and contradictions that could be used against the Elven rulers later.

Thalion hears tales of Ornasion, an ancient citadel with a labyrinthine library. Taking a risk, he relocates the guild there. The citadel is hard to find and reach, offering a hidden sanctuary for the guild members.

Thalion may have passed away generations before Elira and Cormac come onto the scene, but his influence is felt. The Archivist Guild and the haven of Ornasion that he helped establish serve as critical infrastructure in the eventual overthrow of the Elven empire.

Thalion is revered as a visionary who saw the power of knowledge as a tool for both preserving culture and enabling change. Statues or monuments in his honor might be found in Ornasion, and perhaps Elira and Cormac even find some of his original writings during their time there.