From publisher blurb:
Following on the heels of our popular universal supplements, Character Webs and Species and Societies, comes Arc Threads. This book is an invaluable resource for GMs of any game system.
Are you pressed for time or lack inspiration to create your story? Arc Threads has all you need to form the broad strokes of a campaign for any RPG in seconds. There's also a section on creating villains.
Like our other Background books, Arc Threads uses Thunderegg Publications' Generator pages that let you determine multiple data items with a single dice throw. You'll need a single D8 and 8 D6s in assorted colors.