book cover of His Hidden Heir
 

His Hidden Heir

(2026)
(A book in the Kings of the Underworld series)
A novel by

 
 
I went back to the man I once betrayed.
The king I ran from.
The devil I never stopped loving.

Sergei Baranov.
Bratva Pakhan.
The man who owns Moscow with
blood and silence.

I came to him for protection.
Because a killer is hunting me.
Because
the Courier never stops.

He gives me safety the only way he knows how—
with locked doors, armed men,
and
his shadow over every breath I take.

Then I tell him the truth.

About the child.
About
the daughter who has his eyes.

The world shifts.

Now we’re racing to bring her home.
And I watch
a ruthless king become a father.
I watch his heart turn into
a weapon with our names on it.

The underworld calls the Courier a ghost.
Sergei calls him
a dead man walking.
And when the threat reaches for our daughter—
his hidden heir

He doesn’t promise mercy.
He promises extinction.

He cages me in his fortress.
Then
he makes me his wife like it’s a declaration of war.

I should fear a man who would
end cities before he loses his family.

Because when his enemies realize I’m not just his weakness—
when they realize
I’m his reason

There will be blood.

And Sergei Baranov will make sure
the world remembers what happens when you touch what’s his.

A dark, emotionally intense Bratva romance featuring a ruthless pakhan, an age-gap second chance, a secret child, and morally gray love. High heat, high danger, and a guaranteed HEA. No cliffhanger.



Genre: Romantic Suspense

Used availability for Lydia Hall's His Hidden Heir


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