single thread

“If the tapestry was unravelled, even a single thread out of place, it would stop working, but reweaving the damaged portion in accord with the spell’s directions would repair it and restore it to operation.”

With a Single Spell

“The Oaths hold us together, a stated set of beliefs that bind us all, a single thread running through every sister, living or dead, back to the first to lay her hands on the Oath Rod.”

The Path of Daggers