Suzanna Wilkes and Helen Charlesworth live on opposite sides of the United States. Each has a separate life that eventually includes marriage, children, and grandchildren. But little do they know that there are unusual forces at work in their lives. Unaware of their lives hurtling toward each other, Helen and Suzanna experience adventures and family crises, all of which are leading toward the unwinding of the Invisible Thread. At first,each family occupies one part of the book, but near the end a connection is formed conjured up by two people who possess supernatural gifts, feeding out the invisible thread until it finds its home.