Sign-In
Cart
The Shadowed Signature: The Vampire's Calculated Bargain (The Immortal Syllabus Book 5)
Paperback
Series: The Immortal Syllabus, Book 5
Publisher: Shadowlyn Drake
Published: Dec 27 2025
Pages: 76
Weight: 0.18
Height: 0.18 Width: 5.00 Depth: 8.00
Language: English
THE SHADOWED SIGNATURE: THE VAMPIRE'S CALCULATED
(The Immortal Syllabus Book 5)
A BLOOD PACT WITH A VAMPIRE. A CONSPIRACY OF LORDS. A CLAIM FORGED IN THE FIRES OF DOMINION.
The syllabus has changed. The lesson is no longer about survival-it's about Sovereignty.
Circe has ascended. Her Ebony Horns are the crown of her new reality, a testament to the Vicious Devotion she shares with Lord Azreal Blackbourne. The Claim is absolute, a structural marvel of Incubus order taming Succubus chaos. But in the shadowed halls of the University of the Damned, perfection is a target.
The Threat is Cold and Calculating.
When the Master Cryptologist of the Infernal Treaty, the Vampire Scholar Julian Noctis, arrives with a chilling ultimatum, Blackbourne and Circe are forced into a corner. Noctis views the world as archival data, and he sees their passionate Claim as a flaw in the Great Cycle-an entropic waste of energy destined to fracture. To uncover the conspiracy of Incubus Lords plotting their downfall, they must sign a Blood Pact with the Vampire, granting him intrusive, psychic access to the most intimate details of their bond.
A Deception of Passion.
To survive the Vampire's dissection, they must engineer a lie. They must show him a Consort on the brink of breaking, a Claim crumbling under the weight of ambition. But while they manufacture vulnerability for the archives, in the shadows of the study, Blackbourne teaches Circe the ultimate lesson: that true power lies not in rebellion, but in the weaponized surrender to his Dominion.
The Midnight Ritual Awaits.
As the conspiracy is laid bare, the ancient Lords demand the ultimate test: The Midnight Ritual of Sacred Trial. It is a ceremony designed to strip a Succubus of her will and shatter her loyalty. But Blackbourne and Circe will not wait to be summoned. They will demand the trial. They will walk into the lion's den not as victims, but as a united front of terrifying, sovereign power.
The Curriculum is complete. The war has begun.
THE SHADOWED SIGNATURE is the fifth installment in The Immortal Syllabus series, a Dark Academia Fantasy Romance that blends intellectual intrigue with scorching heat. Enter a world of forbidden archives, dangerous professors, and a love that defies the laws of magic.
Scroll up and one-click to sign the pact today!
Class is in Session. Expect the following in this volume:
- Dark Academia Aesthetic: Ancient libraries, Cursed Manuscripts, and rituals performed on crystal desks by candlelight.
- The Vampire Scholar: A cold, analytical rival who brings a chilling contrast to the Incubus's fire.
- Vicious Devotion: A romance that explores the darkest depths of loyalty, possession, and power exchange.
- Structured Chaos: A hero who demands absolute order and a heroine who wields chaos as a weapon.
- High Heat: Explicit, emotionally charged scenes that serve the plot and deepen the magical bond.
- A Power Couple: No damsels in distress here-only a Consort rising to claim her throne beside her Monster.
Also from
Drake, Shadowlyn
The Gypsy's Soulmate, The Vampire's Prey: A Love Beyond Life, A Hunger Beyond Death
Drake, Shadowlyn
Paperback
The Shadowed Discipline: The Rival's Obsessive Decree (The Immortal Syllabus Book 4)
Drake, Shadowlyn
Paperback
The Dark Archive: The Incubus's Absolute Ownership (The Immortal Syllabus Book 2)
Drake, Shadowlyn
Paperback
The Sinful Curriculum: The Scholar's Vicious Devotion (The Immortal Syllabus Book 3)
Drake, Shadowlyn
Paperback
The First Incantation: The Succubus's Sinful Enrollment (The Immortal Syllabus Book 1)
Drake, Shadowlyn
Paperback
Also in
Erotica
Beautiful Carnage (Book 1 of the Dark Empire Books)
Valenti, Susanne
Peckham &. Valenti
Peckham, Caroline
Hardcover
Fifty Shades Trilogy: Fifty Shades of Grey, Fifty Shades Darker, Fifty Shades Freed 3-Volume Boxed Set
James, E. L.
Paperback
Over 100 Sex Positions: FOR GUARANTEED SATISFACTION (Including Oral and Anal)
Albert, Divine
Paperback
The Sleeping Beauty Trilogy Box Set: The Claiming of Sleeping Beauty; Beauty's Punishment; Beauty's Release
Roquelaure, A. N.
Paperback