The Unknown A Novel poster

The Unknown A Novel

By Riley Sager

First published 2026

In 1926, five women disappeared from a remote island in Vermont. Now, one hundred years later, it’s happening again. Struggling actress Marin Keane is shocked when she lands a role in a major motion picture about the unsolved mystery of New Avalon, an island on sprawling Lake Faraday in Vermont. She’s even more surprised when she learns that the role requires a weeklong research trip to that very spot. Because New Avalon isn’t your ordinary island. A century ago, it was a commune for spiritual mediums—until they all vanished in 1926. The only trace of them was five dresses hanging from the branches of an old oak tree in the middle of the island, one for each missing woman. Some locals say they simply left. Others think they were murdered. But the prevailing opinion, thanks to a diary left behind by one of the vanished, a young woman named Daisy Rue, is that a séance gone wrong conjured something supernatural that took them all one by one. Not long after arriving, Marin and her castmates, including legendary actress Violet Wright and white-hot director Ronan Peters, begin to realize all is not right with New Avalon.

Published
4 Aug 2026
Pages
384
Publisher
Penguin Group
Edition
Hardcover
Elsewhere
Open Library
  • Thriller
  • Mystery
  • Horror

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