The Opopanax is the feather that is passed around by the people of Calla Bryn Sturgis that calls a town meeting. If the majority of the people in the town touch the feather, the meeting is held. It is usually carried by a pair of children who act as witnesses and to count how many touch the feather.
- In Wolves of the Calla, it is carried by six children to underscore the importance of the meeting that is being called. The meeting was to determine whether or not to fight against the Wolves.