How prescriptive are the chapter briefs?
Information in the chapter briefs is kept deliberately light. I’d rather it was a fun exercise for all and have a few continuity errors than have it be overly prescribed and just “painting by numbers”. As such, please add whatever additional colour and little adventures you like to your chapter, as long as you cover the plot points listed in your brief and respect the start and end points detailed.
The best way to get an idea of these is to read some chapter briefs from previous years’ events.