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SERIES REVIEW: Merciless & Ruthless (Park Avenue Kings Books 4 & 5) by Ella Frank & Brooke Blaine
Park Avenue Kings: Merciless by Ella Frank & Brook Blaine
Who are we? Nobody really knows. We’re the seven most powerful heirs to empires, ruling Manhattan from our thrones on Park Avenue. By day, we’re the elite, untouchable, and more connected than you could ever imagine. By night, we revel in the darkness of our secrets, pulling strings that make the city bow to our whims.
Ruthless.
Dangerous.
We’re the Park Avenue Kings.
He was sent to watch me. Now he can’t look away.
They sent the president’s son to babysit me.
How precious.
Shepherd “Shep” Winchester III thinks he’s here to keep me in line—keep me quiet, keep me still, keep me safe.
Good luck with that.
I’m Theodore “Theo” Rinaldi, the youngest Prince of Monaco, and the most merciless of the Park Avenue Kings. And I don’t do obedient. Not for my royal family. Not for the crown. And definitely not for the suit King sent to shadow me.
Shep is all discipline and duty.
I’m chaos in a custom suit.
We clash. We combust.
And then we cross a line we can’t uncross.
Now there’s a blackmailer on our trail, a target on my back, and the Kings think I’m the traitor. But if they want to come for me, they’ll have to get through him.
Because the soldier with the perfect posture and the unreadable eyes?
He’s not just protecting me anymore.
He’s falling for me.
And I’m going to ruin him for it.
Merciless (Park Avenue Kings #4) is the first book in a duet within the Park Avenue Kings series. Ruthless (Park Avenue Kings #5) will be the continuation.
Rating:
4.5 Stars – perfection is only half a step awaySoundtrack: Mercy
Artist: IAMX
Album: Kiss + Swallow
Park Avenue Kings: Ruthless by Brooke Blaine & Ella Frank
They called him America’s golden son.
Now he’s the man who’d burn the world for a prince.
When Prince Theodore Rinaldi vanishes, Shepard “Shep” Winchester III will do anything to bring him back.
What starts as a mission of duty ignites into a forbidden obsession—one that blurs every line between loyalty and love.
Back in New York, the Kings are under attack, their secrets exposed, their brotherhood fractured.
And when an attempt on Theo’s life plays out in front of flashing cameras, the world sees what they were never meant to: a touch too intimate, a look too raw.
Shep is the son of American power.
Theo is European royalty.
And in a world built on loyalty, betrayal, and lies, love might be the most ruthless act of all.
Rating:
4 Stars – minor quibbles but I loved it to bitsSoundtrack: Ruthless
Artist: Allegra Jordyn
Album: Ruthless
Merciless and Ruthless is a duet in Park Avenue Kings, the spectacular contemporary romance series by acclaimed duo Ella Frank and Brook Blaine. The Kings are a secret brotherhood of vigilante billionaires known as Libertine, led by Tyrone Kingston— the “King.”
Our Kings this week are Prince Theodore Rinaldi of Monaco and Shepherd O’Neale Winchester III, son of a former U.S. president. Best friends turned lovers after Theo’s brother’s royal wedding, Theo and Shep’s bond is tested by the meddling King, Shep’s ex, despite having two boyfriends (Park Avenue Princes). Theo becomes a target after a suspicious bombing video surfaces. He and Shep were in a safehouse in Brazil when Theo was abducted.
Merciless is certainly more intense, bursting with sexual tension as Shep and Theo explore their new dynamic. Theo is chaotic and impulsive, while Shep is steady and protective. Their chemistry is explosive, Theo pushes boundaries, Shep dominates, and both alphas aren’t afraid to switch roles.
Theo is full of crazy antics, and Shep couldn’t help but be drawn to him, his protective instincts going on overdrive. I loved how they played off each other, their push-and-pull sparking irresistible heat. The only thing missing is Theo being merciless when he was really just impulsive.
After a heart-stopping cliffhanger, Ruthless opens with Shep’s frantic search for the missing Theo in the Amazon. I thought this would take up most of the plot, given the blurb, but the two reunited soon after, and the rest of the plot focused on the search for the blackmailer theatening Libertine.
This was also not King’s finest moment, having abandoned Theo when he was abducted, and fractures appear among the brotherhood. Also, I’m not impressed with how he pretends everything is fine until Theo demands an apology and has to throw a tantrum before King would do so. Alesso is under a lot of stress, leading up to his book, which I’m excited about.
The villain takedown was rushed. I was hoping for more details on this part of the mission. There was a big deal about Alesso having a hard time finding the bad guy who was supposedly smart, only for said bad guy to do something dumb in public.
Romance-wise, this part of the duet is more dramatic but also sweeter and swoonier. Theo and Shep lost no time making it official with not one but two celebrations that couldn’t be more different but equally ridiculously romantic! They have some of the most squee-tastic moments, and the books delivered the feels they promised.
Merciless and Ruthless is a sizzling duet of danger, brotherhood, and royal weddings where a prince and a president’s son come together in chaos and passion. Overall, mercilessly thrilling, ruthlessly swoony!
P.S.
Park Avenue Kings is best read in order. Each King is gorgeous and deadly.
Savage is Lachlan, shadowy and dangerous.
Devilish is Lucien, temptation incarnate.
Immoral is Benoit, utterly seductive and captivating.
If you like my content, please consider using my Amazon affiliate links below to buy your copy of Merciless and Ruthless. As an Amazon Associate, I earn from qualifying Amazon purchases at no additional cost to you.
MERCILESS: Amazon UK | Audiobook
RUTHLESS: Amazon UK | AudiobookIf you like my content, please consider supporting me on Ko-fi or PayPal. Your donations will help keep this website going. Thank you so much!
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COVER REVEAL: Unholy by Ella Frank & Brooke Blaine
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RELEASE BLITZ: Ruthless by Ella Frank & Brooke Blaine
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MY TOP 10 READS OF 2025
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COVER REVEAL: Ruthless by Ella Frank & Brooke Blaine
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RELEASE BLITZ: Merciless by Ella Frank & Brooke Blaine
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REVIEW: Immoral by Brooke Blaine & Ella Frank
Park Avenue Kings: Immoral by Brooke Blaine & Ella Frank
Who are we? Nobody really knows. We’re the seven most powerful heirs to empires, ruling Manhattan from our thrones on Park Avenue. By day, we’re the elite, untouchable, and more connected than you could ever imagine. By night, we revel in the darkness of our secrets, pulling strings that make the city bow to our whims.
Ruthless.
Dangerous.
We’re the Park Avenue Kings.
In this city of power and desire, where the line between love and obsession blurs, nothing is off-limits—and we wouldn’t have it any other way.
He was sent in to seduce a monster. He didn’t expect to fall for the man beneath.
Benoit Olivier has always played the part—charming, cunning, and impossible to pin down. As one of the Park Avenue Kings, he’s used to being the watcher, the flirt, the wild card. But when the Kings need eyes on a powerful new arms dealer with a dangerous reputation, Benoit steps out of the shadows and into the spotlight—as a performer in Dimitri Stavros’s exclusive world.
Dimitri is lethal, calculating, and entirely unprepared for the distraction Benoit presents. Drawn to the dancer’s allure, he offers him a place at his side, unaware that every flirtation, every glance, is a calculated move in a game Benoit was sent to win.
But the deeper Benoit is pulled into Dimitri’s world of wealth, weapons, and whispered threats, the more dangerous the assignment becomes. Because Dimitri doesn’t forgive betrayal—and if he discovers Benoit’s true purpose, it won’t just be hearts that shatter.
Now, with time running out and his feelings blurring the line between performance and reality, Benoit must make a choice: complete the mission… or protect the man he was never supposed to love.
Immoral can be read as a standalone novel in the Park Avenue Kings world, but for maximum enjoyment, read after Savage & Devilish.
Immoral is the third book of Park Avenue Kings, a fabulous, fabulous billionaire secret society series by acclaimed writer duo, Brooke Blaine & Ella Frank.
Our King, this week, is Benoit Olivier – billionaire, burlesque dancer, polyglot, diva, and spy. He’s tasked to gather information about the notorious arms dealer Dimitri Stavros. Benoit is very good at his job, and he pulled out all the stops to hook his mark. Through a burlesque dance, of course.
And what a dance it was! This part alone made the book for me.
Benoit was seduction personified with every sizzling move and smoldering eye contact. He knew he had a gorgeous body and knew how to use it to his advantage. The finale was a cheeky wink and the ultimate tease. If I were in the club, I would have been on my feet, clapping hard and clamouring for more!
So yep, Dimitri stood no chance.
Dimitri is powerful, dangerous, and broody, a weapons dealer in the body of a Greek god. Clearly enamoured by the sassy dancer, possessive and ready to spoil the diva, he was always wanting Benoit so much that his right-hand man had to keep reminding him of business at hand.
Dimitri was a swoony blend of confidence and vulnerability, a tragic prince who slayed the villain, and now the dark king of an underground kingdom. His more somber temperament is a foil to Benoit’s playful side; his burning desire for the spy is matched only by Benoit’s palpable attraction for the man. They fit so well, just watching them interact was a joy!
In the previous books, Savage and Devilish, I had wished the stories were more mission-focused. This time, the mission and romance blended so beautifully, it was pure magic!
Benoit had to endure such hardships as being whisked away to a fairytale castle in Prague, having fantastic smexy times in different rooms each night, dragging Drimtri to a picturesque Christmas market, and sneaking around a luxury train across Europe, not to mention a bout of exhibitionism at a train stop.
Benoit enjoyed himself so much, he had to remind himself he was not on vacation. His sheer delight at a job going well, with how fun it is to flirt with Dimitri, and despite himself, falling in love with his mon monstre, that sense of exhilaration jumped off the page and swept me away!
Immoral have all the perfect moves, from the delicious tease, the nuclear-hot chemistry, the enthralling romance, the riveting cat-and-mouse game, and the constant tension that kept everything tight, fast-paced, and thrilling. Overall, a captivating dance of seduction you never want to escape!
Dating:
5 Stars – absolutely perfectSoundtrack: Kiss Twice, Kiss Me Deadly
Artist: Alice Nine
Album: VandalizeP.S.
Park Avenue Kings can be read as standalones, but the Kings are worth meeting.
Savage is a shadowy king and the innocent journalist in a meet-disaster turned meet-stalker
Devilish is the dom king sweeping the sweet sub off his feet with books and constellations.
If you like my content, please consider using my Amazon affiliate links below to buy your copy of Immoral. As an Amazon Associate, I earn from qualifying Amazon purchases at no additional cost to you.
If you like my content, please consider supporting me on Ko-fi or PayPal. Your donations will help keep this website going. Thank you so much!
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COVER REVEAL: Merciless by Ella Frank & Brooke Blaine
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RELEASE BLITZ: Immortal by Brooke Blaine & Ella Frank (Giveaway)
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COVER REVEAL: Immoral by Brooke Blaine & Ella Frank (Excerpt & Giveaway)
