Shield of Grace

by Kathleen Williams

"She was so determined to live, she'd crawl to the roots of death itself — little did she know, her enemy would cut her path."

In the mortal realm of Ashland, Siobhan Byrne is dying. With no known cure in the human lands, her only hope is to escape her imprisonment and venture to the immortal realm of Tiernall, to beg a dying wish from the sacred Tree of Souls.

To survive her journey in the perilous world of magic, she'll need the help of surly barman Rory McKenna—the infamous street fighter, reluctant vigilante, and the only fae this side of the barrier between worlds. With a poisoned bargain, Shiv traps her light wielding guard, and thus her protection. Together they will travel to Rory's ancestral homeland—the one Shiv has always dreamed of, and Rory has always evaded. What they don't expect, is the deadly prophecy that awakens with their arrival.

They will face warring clans, ruthless creatures, and long buried secrets that unravel their intertwined fates. As their hearts align, Shiv's health dwindles and the Soul Tree falls out of reach.

Shield of Grace is the first in The Relics of Tiernall series — dark romantasy journey that shines with star crossed lovers, and grapples with the inevitability of death.

444 pages, Kindle Edition

Published November 11, 2026

About the author

Kathleen Williams is a passionate artist and dedicated realm builder.

In her writing you’ll find confident women, complex relationships, high stakes tension and gothic atmospheres. She also loves an FMC finding her long winded justice.

Growing up as the youngest of a big family she found solace in quiet moments with books, especially fantasy worlds. Theses stories bled into her work as she grew and crafted her art. Thanks to them, you’ll find a hints of folklore and a splash of darkness in every chapter.

She’s a fan of dark academia, history documentaries, gloomy weather and hot coffee. You can find her lost in a thrift store hunting for trinkets, or wrangling her hectic household. Kathleen resides in Minneapolis with her husband, daughter, and two wild dogs.

Reviews

[Nat BookNerd · Rating 5 out of 5]

so good

if you want a magical, slow burning fantasy with war, rebels, and a roller coaster of emotions then I definitely suggest this amazing book. The spice is hot and the ale is flowing. I am obsessed with these characters and this book.

[kyrié · Rating 5 out of 5]

If death had you in its grip, how hard would you fight to escape its claws? In the debut novel of the Relics of Tiernall trilogy, we join Siobhan (Shiv) Byrne as she undertakes that very battle.

Shield of Grace is not your ordinary fantasy romance novel. This story is for those who have built walls to protect themselves, for those who have felt like outsiders, and for anyone who has ever experienced a dark night of the soul.

This is a story about learning to dismantle the narratives others have made you believe about yourself. It's a story about carving out your own path to self-acceptance and healing. And for anyone who has sought to claim autonomy in living with a chronic illness, you will find refuge in Shiv. ❤️‍🩹

And for my kindred spirits who are forever in search of more MMCs with Aragorn vibes, look no further. Rory McKenna is your man: lawful/neutral good, unnaturally long life, ruggedly handsome, honorable but not afraid to merc a bad guy, and reluctant to accept his own destiny. I promise he checks all the boxes. 😮‍💨

Kathleen Williams has crafted an immensely layered universe in Shield. I was thoroughly impressed with the level of world-building in a debut novel. I also felt the pacing and length of each chapter really found a sweet spot: the story is able to move without feeling rushed, but also not a slog to get through. I'm also a stickler for language and dialogue when I pick up a book like this. It drives me insane when a story is meant to take place in a high fantasy setting but the author peppers in modern language or slang. I am pleased to report that Shield keeps its overarching themes and characters relatable while maintaining that fantastical escapism. ✨

If you enjoy:
• Immersive fantasy 🧝🏼‍♂️
• Found/chosen family 🫂
• Well-developed characters 💭
• A complex/morally grey main character (we stan a complicated FMC!) 🗡️
• Enchanting folklore 🧚🏼‍♀️🧌🧜🏻‍♀️
then I guarantee Shield of Grace will be your next obsession.

This is the perfect moody read for autumn/winter. One of the most captivating ARCs I have read in a long time! I can't wait for the rest of the series!
🐦‍⬛🥀⚔️

[Lanae Knight · Rating 4.5 out of 5]

I received an advanced reader copy of this book and this is my honest review.

If you are looking for a dark, slow-burn, spicy romantasy with a morally grey FMC, fae magic, found family and prophecies look no further!

Siobhan is dying and learned of a tree that will grant a wish when you die before it. She wishes to be a fae herself so she may live. She’s been locked away her whole life but escapes to find the only fae in the human realm so he can escort her to this tree.

Rory is reluctant to go to the fae realm as he watched his father dragged to it by his mother never to be seen again. He fights for those who can’t fight for themselves and for money trying to make their crappy town a little bit better and survive.

He agrees to take Siobhan to this tree with the promise of riches for a reward, however things change once they enter the fae world. It’s a race against time for Siobhan and the encounter several obstacles along the way before they are captured by rebel fae. Here they end up making a home for themselves, build relationships, and find out things aren’t as they once believed all while falling in love and embracing it.

The ending is an epic cliffhanger that will leave you dying for the next book.

I really liked Rory’s character - he’s a great combination of light and justice with touch her and die tendencies. I had a little bit of a harder time with Siobhan in the beginning due to some of her prissy tendencies, but she grew on me as the book progresses. I enjoyed her growth the most as she is truly fierce and loyal but has had to go through many terrible things to get to that point. There are also great side/support characters you can’t help but love, I’m rooting for Cam and Brighid!

[Jessie Swenson · Rating 5 out of 5]

Shiv & Rory are about to be your most favorite dark romantasy characters, at odds with both each other and the fates they’ve been dealt. Shield of Grace takes us on Siobhan Byrne’s (lovingly known as Shiv) journey through Tiernall, land of the fae, twins with the mortal territory of Ashland. Shiv is ill. Deathly ill. And in order to escape her ailments, she must journey to the soul tree, deep within the dark and dangerous lands of Tiernall.

Rory McKenna is your deeply troubled resident sad boi, a storm within his own right, struggling to understand an identity and power that feel foreign and out of his control.

Shiv and Rory find themselves as unlikely and often contradicting travel mates, each battling their own internal wars as they encounter obstacles, challenges, and literal wars on their journey through Tiernall.

Themes include chronic illness, identity, hidden talents, trust, friendship, love, magic, power, sacrifice, and heartbreak. The depth of characters, the imagery, and the vibes within the book are beautifully written. From glowing wisps and pixies, to merfolk, witches, bloodthirsty fae, and Shiv’s faithful canine companion, you will love (or fear!) every carefully crafted character and creature you will meet along the way.

This book will leave you feeling spellbound and wanting for more. As a debut novel, this is an absolute banger and an incredible first installment in the Relics of Tiernall series! All the praise for Kathleen Williams and this beautiful book! You will not regret picking this one up!!

[I was honored to receive an advance reader copy of the book, but would have left this glowing 5-star review regardless cause this sh*t slaps!!]

[Alexandra | the paperback collection · Rating 5 out of 5]

Morally grey FMC, reluctant bodyguard, and deadly prophecies? Say no more. I'm in! 🙋‍♀️

And that pitch… *"She was so desperate to live, she'd crawl to the roots of death itself."* 🫣 I was immediately intrigued!

I absolutely loved Shiv and her story. Her determination to survive, sharp wit, and sassy attitude had me wanting to see more of her. She's clever, resourceful, and definitely not afraid to do what she needs to survive.

Then there's Rory. A grumpy, protective man (reminds me of a cat) who just can't seem to catch a break. 😂 I loved watching these two develop, not just as individuals but also as companions who slowly learn to trust and rely on each other. Shiv is the brains, Rory is the muscle, and together they're such a fun duo!

And the banter! Especially the "Barman" moments. 😂 I loved their interactions and the way their dynamic developed throughout the story.

The side characters were also a highlight. They're all so likeable and interesting in their own right. I really enjoyed the world-building, and the storyline kept me invested in what would happen next.

BUT THAT TWIST AT THE END?! 😱 I genuinely did not see that coming! I love when a book manages to catch me completely off guard.

Overall, such an enjoyable read! I loved the characters, the dynamic between Shiv and Rory, and the mix of prophecies, danger, and adventure.

If you enjoy morally grey heroines, grumpy protective characters, reluctant bodyguards, and fantasy with a touch of mystery, definitely add this to your TBR! ✨

[marspages · Rating 4.5 out of 5]

A huge thank you to the author for providing me with this ARC!

Tropes: dual POV, reluctant bodyguard x spoiler brat, portal between worlds, d&adly prophecies, morally grey FMC, green flag MC, celtic folklore, secret bargains, mythical creatures, gothic atmosphere

When I applied for this ARC, I was desperately crossing my fingers because the premise immediately grabbed me. This was such a captivating read, a refreshing and super original Rapunzel retelling.

What I absolutely adored is that the morally grey dynamic is flipped: Shiv is the calculating, morally grey character here, determined to survive at any cost even if it means trapping her guard into a deadly bargain. Speaking of Rory! New book bf unlocked. I am completely obsessed with him. I absolutely adored his protectiveness, the deep way he truly understands Shiv, and his unyielding devotion. Their dynamic is everything, the building slow burn was delicious, and when they FINALLY gave in it was pure perfection.

The worldbuilding is so intricate, with so many interesting characters and plot twists that keep you glued to the pages. I honestly didn’t want this book to end. I desperately need more of Shiv & Rory and this incredible world! 🖤

“𝘐𝘧 𝘺𝘰𝘶 𝘢𝘳𝘦 𝘵𝘩𝘦 𝘥𝘢𝘳𝘬𝘯𝘦𝘴𝘴, 𝘭𝘦𝘵 𝘮𝘦 𝘣𝘦 𝘺𝘰𝘶𝘳 𝘭𝘪𝘨𝘩𝘵. 𝘐𝘧 𝘺𝘰𝘶 𝘢𝘳𝘦 𝘵𝘩𝘦 𝘯𝘪𝘨𝘩𝘵 𝘴𝘬𝘺, 𝘭𝘦𝘵 𝘮𝘦 𝘣𝘦 𝘺𝘰𝘶𝘳 𝘴𝘵𝘢𝘳.”
Pub Date: 11 Nov 2026

[Melani Pušnik (melyxreads) · Rating 5 out of 5]

Literally just finished reading and I came straight on here to tell you: GO READ IT! The book has only just released and it is absolutely amazing & very well thought out!

The story pulled me in and had me immersed in its world straight away; as Shiv is running away from the only place she has ever known, heading for Tiernall to save herself.
I was locked in even more when Rory entered the page! Their banter and his protectiveness over her had me giggling as a teenager. I really enjoyed their journey and there was never a dull moment as it is paced lovely.

And the end of the book is even better!! The darkness uncovers truths hidden for many years as things unfold. One thing gets solved and multiple complications arise instead. Family ties and lies, and powers coming out one way or another.

This story is beautifully layered with the cute little moments that warm your heart and the moments that make it feel like you will not be able to catch a breath as the stakes rise and rise even higher. The revelation and complications set up the next book really well. I am super excited to see what the author brings to life in the next instalment of this lovely series!!

✶ 𝐦𝐞𝐥𝐲𝐱𝐫𝐞𝐚𝐝𝐬 𝐡𝐨𝐧𝐞𝐬𝐭 𝐫𝐞𝐯𝐢𝐞𝐰 𝐨𝐟 𝐭𝐡𝐞 𝐀𝐑𝐂 ✶

[Angela Crow · Rating 4 out of 5]

Shield of Grace was a great read, full of interesting world building and complex characters.

The world building had enough going on to immerse yourself, but wasn’t so complex that you would drown in it.

The FMC, Shiv, was a refreshing change of pace, being morally gray. She is mortally ill but still is a strong and determined character I wouldn’t want to mess with.

The MMC, Rory, is also different from many romantasy MMCs. He isn’t morally gray, he is all about the light (literally) and what is right.

The character dynamics, specifically the third wheel in their journey threw me at first. I felt like it was getting in the way of the romance but instead it helped build up tension and the personalities of the characters. New characters and groups are introduced pretty seamlessly as their journey goes on.

The ending springs a lot on you, but it left me satisfied while still wanting more. I look forward to the rest of the series.

[Amelia · Rating 4 out of 5]

Shield of Grace is the exact type of romantic fantasy I devour in a fugue state and finally emerge once finishing with a feral need for a sequel and at least three people to yell and yap with. Shiv and Rory’s dynamic is one of my favorite kinds!! Soft, sad girl who acts half feral as a defense mechanism and a tortured, cinnamon roll man who puts those he loves above all else. The romance was definitely a rewarding slow burn and I really want some much more page time with them as a couple! That being said, the plot was super unique and grabbed my attention from the first chapter. I loved experiencing the fae world along with Rory while also feeling the angst on Shiv’s end when it came to her inner turmoil. I had a sneaking suspicion regarding one of the twists, but I was genuinely SHOCKED with another. The last ~50 pages are brutal and sets up for an intense sequel where I have no idea what direction it’s going to take. If you enjoy top tier yearning, a prophecy that takes a unique turn, and plenty of action, definitely pick up Shield of Grace on pub day!

Thank you to the author for sending me an early copy!

[Courtney Gustafson · Rating 5 out of 5]

I genuinely couldn't put this book down. The worldbuilding and imagery throughout is stunning. The intricate storyline and details will pull you in from the very beginning!

I loved the morally grey FMC, Shiv, and her protective barman, Rory. I really enjoyed their dynamic and banter and how their relationship evolved so effortlessly as they encountered different obstacles and characters on their journey through Tiernall. Nothing felt forced and the payoff was well worth the wait! 🔥

There are so many layers to their story and the ending was packed full of surprises in the best way! It left me yearning for more and I can't wait to return to Tiernall and find out what happens next with Shiv and Rory and their rebel (and real) family.

Major props to Kathleen Williams on an amazing debut novel! I am anxiously awaiting the next installment in The Relics of Tiernall series! 

P.S. I have to give a shoutout to Grim for being the best, most loyal pup! 🖤

[Brittany · Rating 5 out of 5]

Thank you so much to the author for the eARC 🩷

Shield of Grace is a romantasy that represents those who have walls mountains high, who've survived the unthinkable, and are still finding themselves in life but refusing to give up.

Shiv is such a relatable character for those of us who suffer from chronic illness and fight that battle everyday. For those who were made to feel like a nuisance for their suffering.

Rory is the perfect example of growing up as an outsider and always being seen as different, and becoming hardened by that judgement but still wanting to do the right thing.

These are the characters you think about for a long time after closing the book, yearning for more of their story.

Also, that plot twist?? Jumped out of my SEAT. Im in shambles. Cannot WAIT for book 2. Absolutely obsessed.

[Erik Bergh · Rating 5 out of 5]

A strong, resilient human FMC that's been through hell in every sense of the word. A broody, protective fae MMC with little love of his heritage. When their worlds collide, you KNOW it's gonna be goooood!

Shiv (Siobhan) escapes her prison of a home, which is all she has known her whole life, in search of the White Warrior (Rory), who she hopes will accompany her to her secret destination. The minute they meet, the fun begins! The banter between the two is nothing short of excellent. Not only that, but throughout the entire book you witness the positive effect they have on each other in their journey through Tiernall, and the impact and trust they find with others along the way.

I cannot WAIT for the next installment!

[Giovanna Errore · Rating 4.5 out of 5]

I had the opportunity to read ad advanced copy of this novel before its debut and I loved it. The worldbuilding is interesting without being overcomplicated and I found the action sequences a bit confusing, but overall I really liked the story.

Most of all, though, I fell in love with the characters. Rory is the greenest of flags and Shiv is literally me. As a chronically ill person, I could see myself mirrored in her constant pain, her shame over her symptomps and her sheer desperation to end her sufferings one way or another. I won’t say more not to spoil the story, but I’m really invested in their story going forward ✨

[Taylor · Rating 5 out of 5]

Review of advanced copy from the author.

“You walked into my life, turned off the lights, and showed me the stars.”

Kathleen Williams knocked it out of the park with this debut. You’re instantly dropped into the action and the story never feels like it’s dragging. She keeps you guessing until the very end.

[Brandey B · Rating 4.5 out of 5]

Received complimentary ARC from author.

⭐️⭐️⭐️⭐️.5/5

This is probably my third darkromantasy book I’ve read this year and I’m absolutely loving it. Thank you to the author for having me on your ARC team 🫶🏽

[Sophie · Rating 5 out of 5]

The journey that this book lead me on felt reminiscent of the delicious rush that comes with staying up way too late on a school night to read just a few more pages. And then... a few more pages became just another chapter until it was 2:30am and I realized that I'm an adult with resonsibilities and a job that I have to wake up for on time.

That said, I regret nothing of the journey. In fact, I am (very) impatiently (but respectfully) awaiting the continuation of Shiv and Rory's tale.

I adored the grounded but deeply intriguing worldbuilding, the character relationships, the banter. It was so easy to see glimpses of myself in so many of the characters.

What a debut novel!