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The Theory of Everything
** The second installment in the finale trilogy to the 25-book Amaranthe saga **
To save the universe, Alex Solovy will risk everything to discover why it falls.
A war has raged for endless aeons. Our greatest champions have fought it again and again in a tireless endeavor to save not merely innumerable lives, but existence itself.
It is a war that has never been won. But there has never been a timeline like this one before.
When the Dzhvar descend in force, Corradeo Praesidis rises as Concord’s resurgent champion. Wielding primordial diati like living fire, he shields billions from the corrosive destruction the Dzhvar inflict. But he is just one man, and the enemy grows more numerous every day, so Kennedy Rossi races to forge dimensional sanctuaries for the worlds beyond his reach, each one carved out at a terrible price.
Nika Kirumase stands at the precipice of her million-year destiny, and the crushing weight of it threatens to shatter even her iron will. Mesme—her past, her mirror, her unyielding guide—must help her become what no other incarnation has: a bridge that can end the war instead of a martyr condemned to fight it anew.
But a bridge to what? Kyoseil binds Alex Solovy to the scar burned into the firmament when the Dzhvar returned. It floods her with visions of countless defeats, yet she hunts for the single path to victory. Her quest to find the key that unlocks everything will take her farther than any mind was ever meant to venture—and beyond.
In the explosive heart of the Amaranthe saga’s final trilogy, as the manifold fractures and primordial titans clash across the stars, relationships, courage and the threads of sanity strain and splinter beneath cosmic forces older than time.
This is the end of days. Mesme has saved the people who will save the universe, if it can be saved, for this moment, and they must hold nothing back.
To save the universe, Alex Solovy will risk everything to discover why it falls.
A war has raged for endless aeons. Our greatest champions have fought it again and again in a tireless endeavor to save not merely innumerable lives, but existence itself.
It is a war that has never been won. But there has never been a timeline like this one before.
When the Dzhvar descend in force, Corradeo Praesidis rises as Concord’s resurgent champion. Wielding primordial diati like living fire, he shields billions from the corrosive destruction the Dzhvar inflict. But he is just one man, and the enemy grows more numerous every day, so Kennedy Rossi races to forge dimensional sanctuaries for the worlds beyond his reach, each one carved out at a terrible price.
Nika Kirumase stands at the precipice of her million-year destiny, and the crushing weight of it threatens to shatter even her iron will. Mesme—her past, her mirror, her unyielding guide—must help her become what no other incarnation has: a bridge that can end the war instead of a martyr condemned to fight it anew.
But a bridge to what? Kyoseil binds Alex Solovy to the scar burned into the firmament when the Dzhvar returned. It floods her with visions of countless defeats, yet she hunts for the single path to victory. Her quest to find the key that unlocks everything will take her farther than any mind was ever meant to venture—and beyond.
In the explosive heart of the Amaranthe saga’s final trilogy, as the manifold fractures and primordial titans clash across the stars, relationships, courage and the threads of sanity strain and splinter beneath cosmic forces older than time.
This is the end of days. Mesme has saved the people who will save the universe, if it can be saved, for this moment, and they must hold nothing back.
- GenresScience Fiction
557 pages, ebook
Published June 12, 2026
About the author
G.S. Jennsen
53 books524 followersG. S. Jennsen is a speculative and science fiction author, as well as a futurist, geek, gamer, programmer and editor. She has become an internationally bestselling author since her first novel, Starshine, was published in March 2014. She has chosen to continue writing under an independent publishing model to ensure the integrity of her series and her ability to execute on the vision she’s had for it since its genesis.
While she has been a lawyer, a software engineer and an editor, she’s found the life of a full-time author preferable by several orders of magnitude.
When she isn’t writing, she’s gaming or working out or getting lost in the mountains that loom large outside the windows in her home. Or she’s dealing with a flooded basement, or standing in a line at Walmart reading the tabloid headlines and wondering who all of those people are. Or sitting on her back porch with a glass of wine, looking up at the stars, trying to figure out what could be up there.
While she has been a lawyer, a software engineer and an editor, she’s found the life of a full-time author preferable by several orders of magnitude.
When she isn’t writing, she’s gaming or working out or getting lost in the mountains that loom large outside the windows in her home. Or she’s dealing with a flooded basement, or standing in a line at Walmart reading the tabloid headlines and wondering who all of those people are. Or sitting on her back porch with a glass of wine, looking up at the stars, trying to figure out what could be up there.
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Displaying 1 - 3 of 3 reviews
June 12, 2026
You know when you’ve been watching a long-running TV series, and you’re aware you’re in the final season? Things have probably been ramping up for the last several episodes, building toward the inevitable finale, and you’re still not quite sure how everything is going to end. You’ve reached the penultimate episode; it probably ended on at least a slight cliffhanger, and you know there’s only one episode to go until it’s all over. You might be a little nervous, but you also can’t wait to see how everything wraps up.
That’s The Theory of Everything in a nutshell.
As it very well should be, of course, being the penultimateepisode installment in this long-running television book series. But it captured that tone perfectly.
It felt like I’d blink and I had suddenly read 100+ pages without realizing it. The story alternated smoothly between Big Damn Heroes™ as our main cast worked tirelessly to combat enemies—both the Dzhvar and smaller-scale foes—and Big Emotions™ as one character in particular worked to come to terms with the mind-boggling revelations that got dumped on her in Liminal Space. I’m exhausted on all the characters’ behalf at this point; I don’t know how anyone is getting any sleep, although I guess when you can snap your fingers and wormhole wherever you need to go, you can afford to catch a few minutes of shut-eye before jetting off to wherever the danger rears its ugly head next.
Admittedly, most/all of the quantum and extradimensional science goes way over my head, so I’m just kind of along for the ride, but upon once again going to great lengths to test a theory, Alex makes another wild discovery about the timeline that’s sure to affect how the finale plays out. And speaking of the timeline, there are flashbacks scattered throughout the book, detailing how the current course of events played out from Mesme’s POV; it was kind of fun to walk back through some of the main events from the entire Amaranthe saga and reminisce about how far the story has come.
If you’ve followed my Amaranthe reviews for a while, you know I can’t write one without taking a whole paragraph to screech about my three Anaden cinnamon rolls. My guy Corradeo shines in this book, having successfully rekindled his relationship with the diati in Liminal Space. But what happens when he alone can’t handle the rapidly increasing Dzhvar incursions? 👀 And then Eren and Nyx are both such well-written, complex characters on their own, but paired together, they’re so deliciously complicated I actually can’t stand it. I confess to glancing at the table of contents while reading, eyeballing the chapter headings with locations my Anaden friends often frequent, and counting down the pages until I get there.
This is one of those stories that, after 24 (and soon to be 25) books, it felt like there was no way it could ever end, but deep down, you knew it had to wrap up sometime. Now I can’t believe that time is upon us. This is one of those stories where I imagine there might be a bittersweet element here and there, but by and large, I know it will all turn out favorably. But I still don’t know how exactly we’ll reach that favorable conclusion, and I very much look forward to finding out.
That’s The Theory of Everything in a nutshell.
As it very well should be, of course, being the penultimate
It felt like I’d blink and I had suddenly read 100+ pages without realizing it. The story alternated smoothly between Big Damn Heroes™ as our main cast worked tirelessly to combat enemies—both the Dzhvar and smaller-scale foes—and Big Emotions™ as one character in particular worked to come to terms with the mind-boggling revelations that got dumped on her in Liminal Space. I’m exhausted on all the characters’ behalf at this point; I don’t know how anyone is getting any sleep, although I guess when you can snap your fingers and wormhole wherever you need to go, you can afford to catch a few minutes of shut-eye before jetting off to wherever the danger rears its ugly head next.
Admittedly, most/all of the quantum and extradimensional science goes way over my head, so I’m just kind of along for the ride, but upon once again going to great lengths to test a theory, Alex makes another wild discovery about the timeline that’s sure to affect how the finale plays out. And speaking of the timeline, there are flashbacks scattered throughout the book, detailing how the current course of events played out from Mesme’s POV; it was kind of fun to walk back through some of the main events from the entire Amaranthe saga and reminisce about how far the story has come.
If you’ve followed my Amaranthe reviews for a while, you know I can’t write one without taking a whole paragraph to screech about my three Anaden cinnamon rolls. My guy Corradeo shines in this book, having successfully rekindled his relationship with the diati in Liminal Space. But what happens when he alone can’t handle the rapidly increasing Dzhvar incursions? 👀 And then Eren and Nyx are both such well-written, complex characters on their own, but paired together, they’re so deliciously complicated I actually can’t stand it. I confess to glancing at the table of contents while reading, eyeballing the chapter headings with locations my Anaden friends often frequent, and counting down the pages until I get there.
This is one of those stories that, after 24 (and soon to be 25) books, it felt like there was no way it could ever end, but deep down, you knew it had to wrap up sometime. Now I can’t believe that time is upon us. This is one of those stories where I imagine there might be a bittersweet element here and there, but by and large, I know it will all turn out favorably. But I still don’t know how exactly we’ll reach that favorable conclusion, and I very much look forward to finding out.
July 13, 2026
So the penultimate book , where did those hours go? The main cast characters continue to grow and develop and realisations, short comings and sacrifices come to focus.
The whole series has been amazing and gripping from the start. Brilliant characters, hardware and concepts. The quantum and extradimensional space/science is amazing and set across a million years, so believable
still a niggle with O.M. and the Dzhvar. Guess we have to wait and see,
If you have not read them all start at the beginning with Starshine
The whole series has been amazing and gripping from the start. Brilliant characters, hardware and concepts. The quantum and extradimensional space/science is amazing and set across a million years, so believable
still a niggle with O.M. and the Dzhvar. Guess we have to wait and see,
If you have not read them all start at the beginning with Starshine
June 30, 2026
This book deserves more than 5 stars. The characters and plot are evolving wonderfully, and I eagerly anticipate the next (and final) book in the series. I hope Ms. Jennsen has more books coming.
Displaying 1 - 3 of 3 reviews