Also see these:

Ritual specialists perform these and other disciplines. Each ritual specialist may perform any or all of these.Ritual specialists are available together or separately, and may cross disciplines as needed. Events and Event/Non-events are performed and documented by each ritual specialist accordingly.

The Umour Event/Non-event can take place within any specified or non specified time frameand may occur at a specific or non-specific location as deemed appropriate by the ritual specialists.This allows for the maximum number of possible variable parameters available to the ritual specialists.