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The Unknown: A Novel book cover by Riley Sager
Hardcover

The Unknown: A Novel

by Riley Sager

$22.40 / copy at 25+ copies As low as $19.84 at 1,000+Your best volume price

Hardcover · 368 pages Penguin Publishing Group · 2026

Format

Hardcover
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About the book

The Unknown

THE INSTANT #1 NEW YORK TIMES BESTSELLER

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. They hear strange noises in the night and notice mysterious symbols left behind by the island's previous occupants. And after a sudden health emergency leaves Marin, Ronan, and the other actors stranded on the island, the disappearances begin again.

Is it the work of someone trying to derail the movie? Or is the island’s alleged supernatural past catching up with the present? As fear and suspicion mount, Marin turns to Daisy’s diary, hoping it holds the key to figuring out what really happened to the women of New Avalon—and how to keep the island’s terrible history from repeating itself.

The book, The Unknown: A Novel [Bulk, Wholesale, Quantity] ISBN#9798217044092 in Hardcover by Riley Sager may be ordered in bulk quantities. Minimum starts at 25 copies. Availability based on publisher status and quantity being ordered.

Details

Publisher
Penguin Publishing Group
Author
Riley Sager
Format
Hardcover
Published
Aug 4, 2026
ISBN-13
9798217044092
Pages
368
Carton quantity
12 copies
Buying for a group

The Unknown in bulk: pricing

Volume pricing applies automatically in your cart. No codes, no account needed.

CopiesPrice per copyYou save
25 – 99 $22.40 30% off list
100 – 249 $21.76 32% off list
250 – 499 $21.12 34% off list
500 – 999 $20.48 36% off list
1,000+ $19.84 38% off list
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