|Book Origin||Age of the Five Trilogy|
|Spoilers from "Priestess of the White"|
During her time in the Open, she meets Tryss, and later becomes romantically involved with him. She is interested in his inventions, and helps him make the harness. Drilli encourages Tryss to show off the harness, despite his shyness and over-worrying about it.
Tryss' cousins also want to be noticed by her, and try to show off which she ignores. She becomes hostile towards them after they destroy the first harness before it can be seen by the other Siyee.
Drilli's father is completely against her relationship with Tryss and tries to get her to marry someone from the remains of their tribe. With the help of Sirri and Sreil, she elopes with Tryss and gets the speaker Ryliss to marry them.
After the Siyee's decision to join the Circlians side, Drilli follows her new husband to war. They share a tent but are in different groups during attack. Drilli survives the war and finds Tryss' body contorted and near death until Leiard arrives and heals him. She then tells him the news that she is pregnant.