What is "unravels"

Usage examples of "unravels".

We found that the tangle-well, sort of unravels about one hundred thousand years ago, as if it suddenly came into existence out of nowhere.

The first unravels a scroll that reads “Ivy” and the second unravels one that reads “Cottage.

But her cynical scheme unravels and she finds herself enmeshed in a self-spun web of deception and danger that threatens to rob her of everything she holds dear.