Riley Sager spends most of The Unknown ending explained making one question feel impossible to answer:

What really happened on New Avalon?

In 1926, five women disappeared from the Vermont island without leaving behind their bodies. A century later, a film crew arrives to recreate their story—and history appears to begin repeating itself.

By the end, however, the supernatural explanation becomes much more complicated.

Some of what happened was staged.

Some of it was murder.

Some of it was manipulation.

And the truth about Daisy Rue changes the meaning of the entire 1926 mystery.

Here is the ending of The Unknown explained.

What Happened at the End of The Unknown? The Unknown ending explained

The biggest revelation is that the apparent supernatural events surrounding the film production were not simply the result of Daisy Rue’s ghost returning to New Avalon.

Violet Wright ultimately admits that she killed director Ronan Peters.

She did it because of what Ronan had done to her secret daughter, Elise Haines.

According to Violet, Ronan had recorded a sexual encounter with Elise and shared it with other people, humiliating her and contributing to her suicide.

Violet therefore decided that Ronan deserved to die.

But she didn’t simply murder him.

She used the mythology of New Avalon to disguise the crime.

The idea was to make Ronan’s death look like another chapter in the island’s supernatural history.

That distinction is crucial.

The production appears to be cursed.

But behind at least some of the apparent supernatural events is something much more human:

revenge.

The Unknown by Riley Sager: Quick Review

Title: The Unknown
Author: Riley Sager
Published: August 4, 2026
Publisher: Dutton
Pages: 368
Genre: Mystery, Thriller, Horror
Pages & Prose Rating: ⭐ 4/5
Reviewer: Delia Marchetti

---

Buy Now

Was Violet Really Possessed by Daisy?

No—or at least, the final revelations strongly indicate that Violet’s possession was part of the deception.

During the final séance, Violet appears to become Daisy.

For much of the novel, this is exactly the kind of moment that seems to confirm the supernatural explanation.

But Violet eventually reveals that she was performing.

She had used Daisy’s story, the diary, and the mythology surrounding New Avalon to make the murder look supernatural.

That means the reader has to reconsider many of the earlier events.

The question isn’t simply:

Did Daisy return?

It becomes:

Who benefits from everyone believing that Daisy returned?

And the answer is Violet.

Why Did Violet Kill Ronan?

Violet’s motive is tied to Elise Haines.

Ronan had recorded an encounter with Elise and distributed the recording, humiliating her.

Elise later died by suicide.

Violet believed Ronan was responsible for what happened to her daughter.

Rather than relying on the legal system, she decided to punish him herself.

This also explains why the film’s strange atmosphere matters so much.

Violet isn’t simply trying to kill Ronan.

She’s constructing a story around his death.

The island already has a legend.

The missing women already provide a historical mystery.

And the film crew has been deliberately recreating that mystery.

Violet realizes she can use all of it as cover.

What Was the Point of the Fake Séance?

The séance is one of the most important pieces of Violet’s plan.

The cast has already been conditioned to believe that New Avalon may be connected to supernatural forces.

They’re recreating the original events.

They’re using the same setting.

They’re using similar rituals.

And they’re surrounded by stories about the missing women.

That makes it much easier for Violet to convince everyone that something supernatural is happening.

When she appears to become Daisy, the performance reinforces the story she’s been creating.

But the apparent possession is not the simple supernatural answer readers have been waiting for.

It’s part of the deception.

What Does Daisy Rue’s Diary Really Mean?

This is where The Unknown becomes considerably stranger.

The diary initially appears to be the closest thing we have to a historical record of what happened in 1926.

But the ending undermines that assumption.

A later journal connected to Ruth Hume Semple reveals that Daisy Rue wasn’t necessarily the person readers assumed she was.

Instead, Daisy was connected to Azra Kovacic, a psychiatric patient who had been brought to New Avalon.

The historical story we have been following is therefore not simply the story of five independent women living together on a mysterious island.

The reality is far more psychologically complicated.

The apparent supernatural mystery has been built around a distorted version of events.

This is one of Sager’s biggest attempts to make the reader question what they thought they understood.

Were the Five Missing Women Real?

This is one of the most important questions raised by the ending.

The journal reveals that some of the women associated with Daisy’s story were actually manifestations of Azra’s fractured perception.

That means the historical events weren’t necessarily what the legend claimed.

The story of five women disappearing together becomes much less straightforward.

Rather than simply being a supernatural disappearance, the mystery is connected to Azra’s psychological state and the environment created by Ruth Hume Semple.

That revelation is deliberately destabilizing.

For most of the novel, we’re encouraged to treat Daisy’s diary as evidence.

By the end, we have to question whether it was ever a reliable account of reality.

So Was There Anything Supernatural on New Avalon?

This is where I think the ending deliberately leaves room for interpretation.

The novel provides a human explanation for many of the events, particularly Violet’s actions and the murder of Ronan.

But Sager doesn’t completely eliminate the possibility that something strange exists beyond the rational explanation.

The final discovery involving Daisy is especially important here.

Marin eventually finds a photograph from 1931 showing a woman who looks remarkably like Daisy.

The woman is identified as Zara McCutcheon.

That creates one final question:

Did Daisy actually survive New Avalon?

If she did, then the psychological explanation doesn’t completely close the door on the mystery.

Who Is Zara McCutcheon?

Four years after the events on New Avalon, Marin discovers the photograph.

Zara McCutcheon looks remarkably similar to Daisy Rue.

The implication is that Daisy may have survived the events of 1926 and escaped the island.

She may have started an entirely new life under another name.

That means the story doesn’t end with a simple:

“It was all in her head.”

Instead, Sager leaves us with another mystery.

If Daisy survived, then what exactly happened to her?

And how much of the original story was true?

The photograph gives Marin—and the reader—one final piece of uncertainty.

What Happened to Ronan?

Ronan is killed by Violet.

The important part is that his death is ultimately treated as an accident rather than as the murder it actually was.

Violet’s plan works.

The supernatural mythology surrounding New Avalon helps conceal the truth.

The film is never completed.

And the official explanation for Ronan’s death remains much simpler than what actually happened.

That gives Violet an enormous advantage.

She gets her revenge while avoiding the consequences of a conventional murder investigation.

What Happens to Marin?

Marin survives New Avalon.

But she leaves the island with something much more valuable than survival:

information.

She knows what Violet did.

She knows that the supernatural story was partly manufactured.

And she knows that the truth about New Avalon is much more complicated than the public version.

Most importantly, Marin realizes that this information gives her power.

Violet needs Marin to remain silent.

Marin needs Violet’s help to build the career she has always wanted.

That creates an uneasy relationship between the two women.

They aren’t exactly friends.

They aren’t exactly enemies either.

They’re connected by a secret.

What Does “I Want to Be Known” Mean?

This is one of the most important lines in the ending.

Marin has spent much of the story wanting recognition.

She wants to become an actress.

She wants people to know her.

After everything that happens on New Avalon, she finally gets what she wanted.

But there is a dark irony to it.

Marin becomes successful partly because of secrets and manipulation surrounding Ronan’s death.

Her dream comes true.

But the foundation underneath that success isn’t exactly clean.

The phrase “I want to be known” therefore has a double meaning.

Marin wants fame.

But the reader also knows something about her that the public doesn’t.

She becomes famous while remaining partially hidden.

What Happens Four Years Later?

The epilogue jumps forward four years.

Marin has become a successful actress and reaches the level of recognition she wanted.

Ronan’s death remains officially classified as an accident.

The movie itself is never made.

The people who know what really happened largely remain silent.

And Marin’s career continues.

Then she discovers the photograph of Zara McCutcheon.

That photograph brings the mystery back.

It suggests that Daisy may have survived.

And suddenly, after all the explanations we’ve been given, we’re left with one final possibility:

Maybe the story isn’t completely over.

What Does the Ending of The Unknown Mean?

I think the ending works best when viewed through the novel’s larger theme of storytelling.

Throughout The Unknown, reality is repeatedly transformed into fiction.

The 1926 events become a legend.

The legend becomes Daisy’s diary.

The diary becomes a screenplay.

The screenplay becomes a film.

And then the people making the film begin manipulating the story themselves.

By the ending, almost everyone has a reason to control what other people believe.

Violet wants Ronan’s death to look supernatural.

Marin wants to protect her future.

The public wants a compelling story.

And the truth becomes less important than the version of events people are willing to accept.

That’s what makes the ending more interesting than simply revealing “the killer.”

The real mystery is about who controls the story.

Was the Ending Satisfying?

This is where I think readers will disagree.

Some readers will appreciate how aggressively Sager changes the apparent explanation.

Others will feel that the final revelations are too complicated or convenient.

That split is already visible in early reader and critical reactions. Some readers praised the unexpected ending, while others criticized the final twists as excessive or unsatisfying.

Critics have also been divided. The Historical Novel Society found the resolution satisfying despite reservations about the premise, while Kirkus Reviews argued that the final quarter became muddled.

For me, the most interesting part isn’t whether every twist works perfectly.

It’s the fact that Sager refuses to give the reader one clean explanation.

Even after Violet’s confession, Daisy’s identity and survival leave a final question hanging over the story.

The Biggest Twist in The Unknown

If I had to reduce the ending to one idea, it would be this:

The supernatural explanation is not the whole truth.

Violet uses the legend of New Avalon to disguise a real crime.

The historical story surrounding Daisy is itself unreliable.

Marin gets the fame she wanted.

And then the final photograph suggests that something about Daisy may still be unresolved.

That’s a very Riley Sager way to end a thriller:

Give the reader an answer, then leave one more question behind.

Want the complete story rather than just the ending? Read our The Unknown by Riley Sager Review.

Final Explanation

The ending of The Unknown reveals that Ronan was murdered by Violet as revenge for what happened to her daughter. Violet used the mythology of New Avalon and a staged possession to make the murder appear connected to the island’s supernatural history.

Meanwhile, the historical mystery surrounding Daisy Rue is revealed to be far more psychologically complicated than the original legend suggested.

Marin survives, keeps Violet’s secret, and eventually becomes the successful actress she always wanted to be.

But the discovery of a 1931 photograph showing a woman who resembles Daisy leaves one final possibility open:

Daisy may have survived New Avalon after all.

And that’s the final trick of The Unknown.

Just when the mystery seems solved, Sager gives us one last reason to doubt what we think we know.

Frequently Asked Questions