Virgil and Trellis both resided alongside a woodland lake in Gulfen. As well as being a caretaker of the young elf, it is known that Virgil owned a library and studied many works of literature – including those by humans – during his lifetime.
Trellis encountered Virgil in the Void using his stone. Having seen him fall out the sky and survived, he mended his arm and placed him in his home to recover. When he woke up, he was directed by a young elven boy he saw earlier to Virgil's cottage, telling him not to knock as he was already expected. Sure enough, before he could the door opened and Virgil let him in to give him a shirt as it is quite cold. He then tells him what happened before he woke up, telling him he fell out of the sky and he thought he died. A confused Trellis inquires where everyone else is, the elder elf telling him he must be delirious as when he fell, he was alone. After rummaging through a drawer he takes out a robe, which he explains to be his father's, a healer, he then goodnaturedly asks Trellis if he wants to hear a funny story about him.
A while later, Virgil took Trellis across a lake to an ancient library, where he gave Trellis information regarding the stone. When the Voice finally appeared to apprehend Trellis, Virgil urged him to escape to a willow grove in the bank, and told him to remember everything and to know that he came from a good family. Virgil is presumably devoured by the Voice.
Later on, he was shown in one of Trellis's memories in the Nexus, where they were going over an old transmission of a alien species leaving their planet because they used up their resources. They note that the inhabitants of the ship are all in a deep sleep, and the only moving inhabitants are the shadows. Virgil then tells younger Trellis that the shadows have already infiltrated the elven army, even the officers. The Elf King then appears and tells younger Trellis that he warned him, and Virgil states that Trellis would have found out on his own eventually. Virgil then tells younger Trellis that they are going to get rid of him and make Trellis forget, and begs Trellis to try and remember as he is dragged off by guards.
Virgil is rather short in appearance, and often carries around with him a satchel. Like most elves, his hair is white and his skin is a palish grey. He wears a blue robe.
He is shown to be a warm, friendly, and caring uncle to the brothers. However, with regards to his brother, he shows concern that his brother speaks to his stone, and anger when he was dragged off for revealing the truth to Trellis. He is also very knowledgeable and frequents a library that holds many works from different periods.
- Despite his little screentime, Virgil seems to bear some similarities with Iroh from Avatar: The Last Airbender. Both are caring uncles who serve as mentors to their nephews.
- Virgil came from Vergilius or Virgilius, the name of an Italian poet. The poet is also a character in Divine Comedy, serving as a guide to Dante through Hell and Purgatory. Fitting, as Virgil is the one who 'guides' Trellis throughout the most crucial moments of the series.
- As of book seven, it is safe to assume that Virgil was executed.