Drusus Rolfe is an Alucar ranger. He was a member of the Cult of Vormund, where he was described as "Vormund's lieutenant".
In pursuit, Drusus eventually found the two men on the road to Hiberia. Upon confirming "Ethan" was in fact Daniel, he captured him. Vormund refused to leave him, and rather sat beside Ethan throughout the night, comforting him by speaking about faith, forgiveness, and paradise. Drusus found himself listening intently to their conversation, and the following morning he struck up a deal: Drusus would let Ethan go on the condition he be allowed to travel with them, watching to make sure Ethan did not kill again. Vormund agreed and the three left for Hiberia.
Due to this incident and witnessing other apparent miracles performed by Vormund, Drusus was converted, becoming the second official member of the Cult of Vormund.
At Drusus' request, his sister Clara joined them in Hiberia. When Vormund decided to leave Hiberia after experiencing a vision and a "pull" toward a distant mountain, Drusus went with him, leaving Clara in the care of Heather Babbitt.