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Black River #2

White Mountain: Deluxe Edition

Not yet published
Expected 13 Oct 26
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In the second book in Ruby Jean Cottle's dark and romantic Black River duology, a group of teens must face new supernatural threats while guarding the secrets that could tear them apart.

It's been months since the Silver sisters' life changed forever. Dusty should be focused on her new relationship, but how can she, when her visions of the future show her little sister in trouble? Something is waking beneath the mountain, and it’s getting harder to ignore.

When an old foe returns with an army of vampire fledglings and a dangerous new agenda, the Silver sisters and their friends are forced to confront him once again. And after a body turns up in the woods, an unrelenting detective begins digging into the town’s string of unsolved deaths, threatening to expose everything they've all hidden.

As new romances bloom and loyalties are tested, the group is forced to face impossible questions about themselves and their relationships.

Whatever is hiding in the mountain isn’t finished with them. And the worst may still be yet to come.

368 pages, Hardcover

Expected publication October 13, 2026

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About the author

Ruby Jean Cottle

5 books125 followers
Ruby Jean Cottle is a writer from Sydney, Australia. Growing up, Ruby spent childhood summers in upstate New York, where her passion for writing blossomed as her imagination ran wild in the mountains and forests far from her home. After studying art history at university, Ruby found herself on a winding career path in fashion, digital media and creative direction. After becoming a mother, she decided to return to her first love: writing stories.

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5 stars
10 (52%)
4 stars
6 (31%)
3 stars
3 (15%)
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Displaying 1 - 12 of 12 reviews
Profile Image for Dozelina 666.
429 reviews16 followers
Review of advance copy received from NetGalley
April 26, 2026
I think I might've liked this even more than book one.

As the final book in the Black River duology, this one definitely delivered on a lot of things I was hoping for.

First of all… the romance.

OMG I did not fully see it coming, but I was rooting for them from the very beginning. And this time? I actually felt it. The tension, the build-up, the care between them… it was done so much better compared to book one with Dusty and Will. Still a sloooow burn, but a GOOD one at least.

Plot-wise, I liked that we get more answers about what’s actually going on. The story expands and things get darker. That said, I did feel like some parts of the plot were a bit unclear or not fully developed at times, which made a few moments slightly confusing.

Character-wise… Ophelia was such a standout for me in this book. I loved her. Was she a bit reckless and bratty at times? Yes. But also… she is still a teenager, so it made sense.

Now… Dusty.

I get it. I really do. She’s worried about her sister. But oh my god… let the girl breathe. She was definitely the most frustrating character for me in this installment. ( I felt like they switched places, in book 1 Ophelia had her moments, in book 2 Dusty, lol ^^)

Complaints aside, I still really enjoyed this. I picked it up as soon as I got it and it kept me hooked until the end.

⭐ 4.5 stars (rounded up to 5)

Thank you NetGalley and Macmillan Children’s Publishing Group for the ARC.
Profile Image for whatbooknext.
1,387 reviews49 followers
September 4, 2026
What is White Mountain about?
The 2nd book in the duology beginning with Black River, this episode is focussed on Opi (Ophelia), the younger sister of the main character of Black River.

Opi is now affected by the same bloodlust as her sister Dusty. She must learn to deal with it, whilst yearning for the same connection with someone, like Dusty has her boyfriend Will.

Bodies are surfacing however, and the police are beginning to investigate what is going on, on White Mountain.

Plot summary of White Mountain (No Spoilers)
Opi has become like her big sister Dusty, requiring blood to survive. They don't sleep or eat, and have special gifts. Opi is frustrated at how long it takes for her special skill to surface, but when it does, it's miraculous.

She struggles with her need for blood however, and feeding once a week from an understanding friend is not satiating her. Still reeling from drinking from a loved one to a dangerous level for them, Opi is full of guilt.

But this one event has Dusty asking her friend Eli to watch over Opi. Dusty fears for others and Opi's safety, but this constant hovering is angering Opi.

Eli and Opi clash as they spend so much time together, and all the while another 'changed' White Mountain teenager is changing others, putting them all at risk.

When the police begin investigating a body found at the roots of a felled tree, tension rises among Opi, Dusty and their friends. Can they keep their secret? The reason behind everything is slowly revealed and they must all work together to fight the force that changed their lives.

Review
I enjoyed reading this episode in Opi's point of view, but I enjoyed the surprise of Black River better. This novel however, pulls everything together, including the reason for their mother's disappearance when they were young, what a rebel vampire is actually doing, and the force that has caused the changes in their lives.

Romance is a much bigger part of this episode, with Opi and Eli being the main focus of this thread. The increased tension with a police investigation makes White Mountain gripping, but I would describe this novel as a slow burn type of read with a satisfying conclusion.

FAQ’s
What age is it for?
12+

Where & When is it set?
A fictional town called Black River in the Adirondack Mountains of upstate New York

What is the Point of View / Tense of the novel?
Multiple points of view / Third person

Is there Violence?
Gunshots are fired in the exciting ending

Is there sex in this novel?
No

What genre is White Mountain?
Fantasy Young Adult Fiction

Themes
Vampires / Fantasy / Romance / Friendship / Love / Sci Fi

Is it part of a series?
Yes
1 - Black River
2 - White Mountain
Profile Image for Mandy Enchantedbookduo.
274 reviews29 followers
Review of advance copy received from Publisher
August 27, 2026
Rating
4 💎
🫑

Quick Summary
I was so excited to dive back into this world again, and getting the story through more of Opi’s POV made it even better. At first she felt very 'poor me,' but author Ruby was able develop her into such a strong, layered character which was genuinely amazing. The twists and turns caught me off guard in the best way, and the new relationships forming throughout the book were absolute perfection. The villain was crafted so well, the ending landed beautifully, and the found‑family elements were everything I love in a story.

While Reading Thoughts
📘Was soo excited to head back into this world.
📘This is from more of Opi’s POV and I loved experiencing her journey. She was so poor me at the start but then the way the author Ruby developed her character was excellent and the personal development was so great to read
📘Lots of unexpected twists and turns in this book, a lot I didn’t predict.
📘The new relationships that were forming in this book were perfection and couldn’t get enough.
📘The villain in this story was created well and enjoyed how the book finished
📘The found family elements of this book were fantastic

Words that linger
🍷The need, the action, the solution. Hunger, hunt, prey.
🍷 You're like…. out of a book or something. With your garden and your dresses and your teas and how nice you are to everyone.
🍷Let's do it. I can't wait to get in there. I love supernatural, claustrophobic spaces.
🍷 Its basic chemistry, and I'm sick of you twisting my words, because I think I've been pretty f*^king crystal clear about how much I admire and respect you, let alone the fact that I think you're like a vision of a god damn angel.

Tropes
🌳Coming of age
🌳Bloodlust
🌳Small town mystery
🌳Slow burn
🌳Chilling twists

Post ideas
Thanks to Atria Books Aus & Simon & Schuster Aus for physical early copy


Profile Image for Ayana.
150 reviews1 follower
Review of advance copy received from Netgalley
April 13, 2026
🩸🌨 4.5☆

I love Demon Fairy Opi (she's not literally one, you'll get it)!

For me this second part of the duology was better than the first in experience (more comfortable to read) and characters (which no more felt like a group of oh so "special" superheroes), but less attractive in plot (less of a logical line and strategy, mostly predictable events, but quite interesting to read anyway).

The way Dusty overcontrolled Opi was extremely annoying. I don't thing that kind of "care" for her sister did any good. And controlling more in the face of a coming danger sounds even worse. I guess that's another reason why I liked this book much more than the first — this one is Opi's and Black River was Dusty's. And Dusty's so annoying in comparison.

The story about the mother was kinda strange. I don't understand the logic in characters' actions in that moment. It just seemed like the author wanted the story to be told somehow and shoved it there failing to build any logical connection, like an NPC was filling in the needed info. And there were other moments like this later. Sadly turned out to be just for another plot moments, not character interactions/development and whatever. A lot of scenes with side characters felt like we were there just to get some insights/steps into the plot, not the naturally flowing story.

Overall I liked it anyway, enjoyed reading. It had original worldbuilding despite the classical topic, characters I loved (most of them. Not Dusty though), and many other memorable details!

- - -
Thanks to NetGalley and the publisher for providing me with this free eARC in exchange for my honest review!
Profile Image for trish.
17 reviews2 followers
Review of advance copy received from Publisher
August 28, 2026
Thank you to Simon and Schuster for sending me a proof copy of this book, and to the lovely Ruby Jean Cottle for writing it! I absolutely loved reading this whole series, particularly this book! I was so invested into the romance between Opi and Eli, I absolutely loved their dynamic. The tension, the banter, the build-up, I loved every single aspect.

I particularly loved Opi’s character development, particularly how relatable it was. Like, yes I appreciate Dusty’s character development into someone who isn’t afraid to feel or face emotion. On the other hand though, Opi’s was about learning to come to terms with growth and changing into a different person with the underlying message that you shouldn’t become too comfortable being the person you are now because growth and changing yourself is an inevitable part of life. I think as a 21-year-old who is still trying to figure out who she is and wants to be, this character development hit me deeper and that’s why I loved the book so much.

However, towards the end, I did feel a little bit confused as to how the story was wrapping up. For example, I didn’t really understand that the shadow was gone until they actually explicitly stated it. Things like that made the ending a bit confusing. But I did really enjoy seeing Opi and Eli end up together. They will always be my favourite couple of the entire series!

Babes, this is the perfect paranormal romance series to read if you’re in the mood for a cozy paranormal romance and want to mega-relate to the characters.
This entire review has been hidden because of spoilers.
Profile Image for KK Reads.
352 reviews39 followers
September 2, 2026
4.5 ⭐️

This duology is such a winner for me. I love the mash up of paranormal, sci fi and romance!

White Mountain brings us back to Black River, not long after the events of the first book, but we get a stronger focus on Opi (Ophelia) this time, Dusty's sister, while still following along with Dusty, Will, Eli and other characters from Black River.

Opi felt really interesting to me because she has the younger sibling mentality, feeling a bit overlooked, a bit sheltered (babied / overprotected) which is not something I can really relate to as an eldest daughter but I found so interesting to read, and I found myself feeling really sympathetic towards her, because yes, her sister and her friends got some super powers with their vampiric curse and Opi is just struggling with her blood lust, she can't find the upside. I really appreciated Opi's character development, the way it felt gradual and earned, and the way the romance storyline progressed in a way that felt so natural.

The continuation of JD's story was such a fun little side quest - the visions and the developments gave Twilight vibes, and I loved any little glimpse we got of what was happening and where it was going. I found myself unexpectedly in the feels by the way this wrapped up.

I love a story that leaves you wondering a bit, and White Mountain does that in my opinion - the way things went with the origin of their curse, I'm still not sure whether this is paranormal, sci fi or something else entirely, in origin (I'm sorry if this feels too vague but I don't want to spoil!)

Overall, I would definitely recommend this series and I look forward to seeing what else Ruby Jean Cottle writes!
Profile Image for Alyssa J.
392 reviews18 followers
April 14, 2026
White Mountain is a small-town romance but different and dark. I really enjoyed the setting, it created a warm feeling while reading and the writing was easy to follow.

However, the pacing tends to drag, particularly in the middle, making it hard to stay fully engaged. The romance was sweet, but I found myself wanting more depth and tension between the main characters. I was hunting for the dark aspect & never really felt it.

Overall, this was an easy read with a lovely atmosphere, but it left me wanting more spark between the characters.
Profile Image for Emma Sneakybooktok.
421 reviews4 followers
Review of advance copy received from Publisher
August 2, 2026
An atmospheric wonderland of a read 😍

Dare I even say, this may have been even better than book 1, which was a hard act to follow but WOW 😍 WOWOWOW. Ruby's writing style is magical, her character development is second to none, and the world building was just phenomenal!

We had every question answered in Book 2, and it did not dissapoint. I am so sad it is over, what a beautiful duology, but Ruby wrapped it up in a nice little package and ending for us.

Can't wait to read more of Ruby's books in the future 🥰🫶🏻
Profile Image for ShireenWrites.
288 reviews7 followers
Review of advance copy received from Publisher
April 8, 2026
(Slight spoiler)
I really enjoyed this book, even more than the first, since Ophelia was one of my favorite characters. Although in this book her sudden immaturity and rashness was annoying. I really enjoyed the enemies to friends to lovers relationship with her and Eli, although it was the slowest of slowest burns.
The natural and sci-fi elements in this book were interesting and I think it could have been a trilogy.

Thank you Macmillan for the advanced digital review copy.
Profile Image for Kirstie Ross.
61 reviews3 followers
Review of advance copy received from Publisher
September 7, 2026
I was lucky enough to get a arc copy from the publisher.

I devoured the first one & this one was no exception!!
I loved where this story went & how we got to follow Opi more & how bad she struggled along the way. How she eventually found herself & finally found herself in the world.

It was a beautiful ending to the story :)
107 reviews
Review of advance copy received from NetGalley
June 30, 2026
Thank you NetGalley for e-Arch of this book. White Mountain is a small-town romance but different and dark. I really enjoyed the setting.
However, the pacing is hard to follow, particularly in the middle. Overall, was not really that bad for quick read but unfortunately, it does lack a spark.
Profile Image for Martin Evans.
107 reviews11 followers
Review of advance copy received from Author
August 14, 2026
Last year, Black River became my first 5-star read of the year. So when I tell you I had been WAITING for White Mountain… I need you to understand the expectations were HIGH.

And now apparently I’m expected to accept that this is a duology??? No. ❤️

Ruby has said she wants to write more within this universe, but I don't just want more from this universe. My body craves another 2 books with these characters specifically, at a minimum, plus 5 in an expanded universe.

One of my favourite things about White Mountain is how naturally it progresses from the first book. Black River was very much about Dusty, her changing body, her mind, her relationships, and that strange YA liminal space between girl and monster, love and survival. Her transformation was both physical and emotional, and I ached for her. But White Mountain gets to ask: okay, you've changed. Now what? Plus a shift to other characters.

We get to explore what Dusty and her sister Ophelia can actually do now, while the world around her gets bigger, darker and considerably more dangerous. We also FINALLY start getting answers about what's actually happening, which naturally only made me want about seventeen more answers.

I also loved exploring Dusty's relationship with Ophelia. Dusty absolutely crosses into overbearing territory with the way she mothers her little sister, but after everything they've been through? I get it. Her fear of losing Ophelia is palpable, even when that fear starts affecting the way she treats her.

And amongst all of that, we've got new supernatural threats, vampires, murder, romance, secrets, shifting loyalties and something VERY questionable happening beneath a mountain. Basically, I ate this up.

White Mountain takes everything I loved about Black River and expands it without losing the strange, intimate, slightly unsettling heart that made me fall in love with this story in the first place. My only complaint?

There aren't another five books waiting for me.

Ruby, please rectify this immediately. 🖤
Displaying 1 - 12 of 12 reviews