The Unknown: A totally gripping, unputdownable and heart-pounding thriller
Riley Sager
Aug 2026 · Hodder & Stoughton · Narrated by Stephanie Cannon
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2 reviews
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9 hr 59 min
Unabridged
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About this audiobook
A hundred years ago, five women disappeared. Now, it's happening again . . .
Struggling actress Marin Keane is shocked when she lands a role in a major film about the unsolved mystery of New Avalon, an island on sprawling Lake Faraday in Vermont.
New Avalon isn't an ordinary island. A century ago, it was a commune for spiritual mediums - until, in 1926, they vanished. The only trace of them left was five dresses hanging from the branches of an old oak tree. One for each missing woman.
The stories say that when a séance went wrong, something supernatural took them all.
One by one . . .
When Marin and her castmates visit the island, they begin to realise that even now all is not right with New Avalon. Strange noises are heard in the night, and mysterious symbols are found, left by the island's previous occupants.
And then the disappearances begin again.
One by one . . .
As panic and superstition rise, Marin must uncover the island's terrifying secret to prevent its dark history from repeating itself . . . and escape the island alive.
The brand-new, unputdownable thriller from New York Times bestselling author Riley Sager. Fans of Grady Hendrix, Freida McFadden and Alice Feeney will be hooked!
READERS LOVE RILEY SAGER:
'OH. MY. WORD. I devoured it in a single day . . . addictive . . . bold, propulsive, and full of twists. I genuinely loved it and couldn't put it down.' Goodreads reviewer, ⭐⭐⭐⭐⭐
'Wow! What a read! . . . I was immediately sucked in . . . so many twists . . . I literally couldn't put this book down . . . amazing . . . It deserves all the stars.' Goodreads reviewer, ⭐⭐⭐⭐⭐
'Page-turner . . . unpredictable . . . loved it . . . thrilling . . . left my head spinning.' Goodreads reviewer, ⭐⭐⭐⭐⭐
'I loved this! Riley Sager is the master of twists! This gave me big Agatha Christie vibes . . . tense and fast-paced.' Goodreads reviewer, ⭐⭐⭐⭐⭐
'I LOVED this book!! . . . heart-pounding.' Goodreads reviewer, ⭐⭐⭐⭐⭐
'I DEVOURED it!!! I loved it badddddd . . . In true Riley Sager fashion, you think you know what's happening and then he sends 4 more twists at you.' Goodreads reviewer, ⭐⭐⭐⭐⭐
AND SO DO YOUR FAVOURITE AUTHORS:
'A locked room thriller at its best! Nonstop suspense with twists and turns that will leave your head spinning' Freida McFadden
'Sager wields a deft hand in bringing all the elements together into a rip-roaring, tension-filled tale of greed, murder and revenge' David Baldacci
Struggling actress Marin Keane is shocked when she lands a role in a major film about the unsolved mystery of New Avalon, an island on sprawling Lake Faraday in Vermont.
New Avalon isn't an ordinary island. A century ago, it was a commune for spiritual mediums - until, in 1926, they vanished. The only trace of them left was five dresses hanging from the branches of an old oak tree. One for each missing woman.
The stories say that when a séance went wrong, something supernatural took them all.
One by one . . .
When Marin and her castmates visit the island, they begin to realise that even now all is not right with New Avalon. Strange noises are heard in the night, and mysterious symbols are found, left by the island's previous occupants.
And then the disappearances begin again.
One by one . . .
As panic and superstition rise, Marin must uncover the island's terrifying secret to prevent its dark history from repeating itself . . . and escape the island alive.
The brand-new, unputdownable thriller from New York Times bestselling author Riley Sager. Fans of Grady Hendrix, Freida McFadden and Alice Feeney will be hooked!
READERS LOVE RILEY SAGER:
'OH. MY. WORD. I devoured it in a single day . . . addictive . . . bold, propulsive, and full of twists. I genuinely loved it and couldn't put it down.' Goodreads reviewer, ⭐⭐⭐⭐⭐
'Wow! What a read! . . . I was immediately sucked in . . . so many twists . . . I literally couldn't put this book down . . . amazing . . . It deserves all the stars.' Goodreads reviewer, ⭐⭐⭐⭐⭐
'Page-turner . . . unpredictable . . . loved it . . . thrilling . . . left my head spinning.' Goodreads reviewer, ⭐⭐⭐⭐⭐
'I loved this! Riley Sager is the master of twists! This gave me big Agatha Christie vibes . . . tense and fast-paced.' Goodreads reviewer, ⭐⭐⭐⭐⭐
'I LOVED this book!! . . . heart-pounding.' Goodreads reviewer, ⭐⭐⭐⭐⭐
'I DEVOURED it!!! I loved it badddddd . . . In true Riley Sager fashion, you think you know what's happening and then he sends 4 more twists at you.' Goodreads reviewer, ⭐⭐⭐⭐⭐
AND SO DO YOUR FAVOURITE AUTHORS:
'A locked room thriller at its best! Nonstop suspense with twists and turns that will leave your head spinning' Freida McFadden
'Sager wields a deft hand in bringing all the elements together into a rip-roaring, tension-filled tale of greed, murder and revenge' David Baldacci
A hundred years ago, five women disappeared. Now, it's happening again . . .
Struggling actress Marin Keane is shocked when she lands a role in a major film about the unsolved mystery of New Avalon, an island on sprawling Lake Faraday in Vermont.
New Avalon isn't an ordinary island. A century a...
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Ratings and reviews
2 reviews
About the author
Riley Sager is the New York Times bestselling author of ten novels, most recently With a Vengeance, Middle of the Night and The Only One Left. His novels have been published in 40 countries, with more than 4 million copies sold worldwide. The Unknown is his latest book. A native of Pennsylvania, he now lives in Princeton, New Jersey.
Riley Sager is the New York Times bestselling author of ten novels, most recently With a Vengeance, Middle of the Night and The Only One Left. His novels have been published in 40 countries, with more than 4 million copies sold worldwide. The Unknown is his latest book. A native of Pennsylvania, ...
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