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tess

Tess Gruber

A rare-book dealer hunts three cursed copies of a text that may summon the Devil.

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tess

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New York rare-book dealer Dean Corso is hired by collector Boris Balkan to authenticate one of three surviving copies of The Nine Gates of the Kingdom of Shadows, a 17th-century book said to summon the Devil. Traveling through Europe, Corso compares engravings, finds some signed by Lucifer rather than the author, and is shadowed by a mysterious woman he nicknames Green Eyes. Owners of the other copies die violently, a Satanic cult surfaces, and Balkan seizes the book to perform the rite himself. His ceremony fails, Green Eyes reveals why, and Corso ends up holding all nine authentic engravings as the castle gates open with light.

Before you start

Why it matters

This is a slow-burn occult mystery that trades jump scares for bibliographic detective work: comparing engravings, chasing provenance, watching a cynical dealer get pulled into belief. It rewards readers who like atmosphere, irony, and endings that open a door instead of closing one. If you enjoyed Rosemary's Baby's creeping dread or stories where a profession becomes a descent, this cult favorite is for you.

Spoilers ahead

The story

  1. 1

    Act 1

    The Commission

    Dean Corso, a New York City rare book dealer, is hired by wealthy collector Boris Balkan, who has acquired a copy of The Nine Gates of the Kingdom of Shadows. The book is by 17th-century author Aristide de Torchia, said to have been written in collaboration with the Devil; only three copies survived when he and his works were burned for heresy. Balkan believes only one of the three is authentic. He hires Corso to travel to Europe to inspect the other two copies to determine which one it is. From the first pages of his errand, Corso notices a mysterious woman shadowing him; he nicknames her Green Eyes. Corso interviews Liana Telfer, the widow of Andrew Telfer who sold Balkan The Nine Gates shortly before killing himself. Telfer later seduces Corso, hoping he will sell the book to her. After they have sex, and he refuses to sell, she gets angry, and she knocks him unconscious. The next day, Corso goes to a bookseller to whom he had entrusted the book and finds him hanged in his store, in a way depicted in one of the engravings in The Nine Gates. The message is clear: following this book costs lives. Corso retrieves the book and travels to Toledo, Spain, to speak to the Ceniza Brothers.

  2. 2

    Act 2

    Three Copies, Two Signatures

    Corso travels to Toledo, Spain, to speak to the Ceniza Brothers, book restorers who owned Balkan's copy before the Telfers. The two show him that, of the book's nine engravings, only six are signed "AT"; the other three are signed "LCF" for Lucifer. Corso travels to Sintra, Portugal, and meets with Victor Fargas, who owns a copy of The Nine Gates. Corso finds that three different engravings in his copy are signed "LCF", and the engravings signed this way have subtle differences from those signed "AT". Corso relays his findings to Balkan and Balkan orders him to acquire Fargas's copy. The next day, Green Eyes takes Corso to see Fargas, but they find that he has been drowned; Corso retrieves Fargas's burnt copy from the fireplace and finds that the three "LCF" engravings had been torn out. Someone is assembling a set. Corso goes to Paris, France, to investigate the third copy owned by Baroness Kessler. Wary of Corso and knowing he is employed by Balkan, she refuses him. Corso is attacked while walking outside only to be saved by Green Eyes, who exhibits seemingly supernatural powers. Corso hides Balkan's book in his hotel room and tells Kessler about the "LCF" engravings, proposing that each copy has three that together make an authentic set of nine. Intrigued, Kessler allows Corso to look at her copy. Corso is attacked while studying it in her library, the Baroness is strangled to death and the library set on fire.

  3. 3

    Act 3

    The Cult and the Castle

    Corso returns to his hotel and discovers Balkan's copy is missing, probably stolen by Liana. Green Eyes and Corso track Liana to her family's ancestral manor where a Satanic cult is conducting a rite using Balkan's book. Balkan interrupts the ceremony, takes his copy back, and strangles Liana to death as the rest of the members run away in fear. Corso abandons Green Eyes, presuming she was working for Balkan, and pursues Balkan but loses him when his car breaks down. Corso finds a clue in Kessler's belongings that directs him to a remote castle, where Balkan is preparing to summon the Devil using the nine "LCF" engravings. He subdues Corso and forces him to watch as he performs the rite; it seemingly grants Balkan immunity from harm, and he immolates himself to convince a still-skeptical Corso. However, Balkan begins to scream in pain as the flames engulf his body. Corso eventually frees himself, retrieves the engravings and shoots Balkan dead to end his suffering. Sitting in Balkan's car, Corso is startled by Green Eyes, and she kisses him. The pair then have passionate sex on the ground while backlit by the burning castle. Green Eyes' face and eyes seem to change as she writhes astride Corso in a state of crazed bliss.

  4. 4

    Act 4

    The Ninth Gate

    Afterwards, as the two are traveling, Green Eyes explains Balkan's rite failed because the ninth engraving was forged. When they stop for gasoline she vanishes, but leaves Corso a note sending him to the Ceniza brothers. At their shop, Corso finds they have vanished and the shop is being cleaned out. As workmen remove a large bookcase, a dust-covered paper floats down from the top. This is the authentic engraving. It depicts a woman who resembles Green Eyes riding atop a dragon-like beast in front of the castle at dawn. Corso, now with all nine authentic engravings in his possession, returns to the castle. The gates open on their own and emit a powerful bright light as Corso walks through, taking the journey through the Ninth Gate.

Who's who

Characters

  • Dean CorsoA New York rare-book dealer hired to verify which copy of The Nine Gates is authentic; a skeptic who follows engravings and provenance until the evidence stops being deniable, and he walks through the castle gates himself.
  • Boris BalkanA wealthy collector who buys a copy of The Nine Gates and commissions the authentication; convinced he alone can summon the Devil, he seizes the book back, performs the rite, and burns screaming when it fails.
  • Green EyesThe mysterious woman shadowing Corso across Europe, saving him with seemingly supernatural powers; she guides him to the true engraving and is depicted in it, riding a beast before the castle at dawn.
  • Liana TelferWidow of Andrew Telfer, who sold Balkan the book before killing himself; she seduces Corso to get the copy, fails, and later dies strangled by Balkan at her family's manor during the cult's rite.
  • The Ceniza BrothersToledo book restorers and former owners of Balkan's copy who reveal the "AT" and "LCF" signatures; they vanish, leaving the authentic ninth engraving to drift down from a bookcase.
  • Victor FargasOwner of the second copy in Sintra, Portugal; Corso confirms his three "LCF" engravings, then finds him drowned and his copy burnt, those plates torn out.
  • Baroness KesslerParis owner of the third copy who refuses Corso until he proposes the three-plus-three-plus-three theory; she lets him into her library and is strangled there as it burns.

What it's really about

Themes

Authenticity as obsession

The whole plot is a connoisseur's problem: three copies, one real, and the difference hides in signatures and plate details only a trained eye can catch. Corso's value to Balkan is exactly this expertise, and every death around him raises the stakes of a question that starts as scholarship. The book treats authentication as a kind of faith, since Corso must decide what the "LCF" signatures mean before he can decide what the book is. When the forged ninth engraving is exposed, expertise is vindicated, and when the gates open, expertise meets something beyond it. The point: verifying a text can become the same thing as believing it.

The price of acquisition

Every hand the book passes through pays: Andrew Telfer sells it and kills himself, the bookseller entrusted with it is found hanged in a pose from its own engravings, Fargas drowns, Kessler is strangled and her library burns, Liana is strangled at her own manor. Collecting here is not a hobby but a contest where possession invites violence, and Balkan's willingness to interrupt a cult and strangle Liana shows what ownership does to him. Corso survives by being a courier rather than an owner, until the end, when he holds all nine engravings. The point: wanting the rare thing can cost everything you have.

Skepticism tested by evidence

Corso works like a professional: compare plates, check signatures, trace provenance. He watches Balkan's rite and remains skeptical even when Balkan appears unharmed, and he is vindicated when Balkan screams in the flames. Yet the evidence keeps outrunning explanation, from Green Eyes' powers to the engraving that looks like her. The story never asks Corso to leap into belief; it simply keeps handing him facts a skeptic cannot dismiss. The point: the rational mind is not defeated by the supernatural, it is led there step by step.

Who the book was really for

Balkan has money, Liana has seduction, the cult has numbers, and all of them fail. The rite fails for Balkan because the ninth engraving is forged, and the true plate surfaces not through power but through the vanished Ceniza Brothers' emptying shop, drifting down from a bookcase to the one man who never tried to use the book. Green Eyes, its apparent subject, chooses Corso and leaves him the note. The point: the text does not answer to wealth or ritual, only to the reader who follows it honestly.

Look closer

Symbols

The "LCF" signatures
Three engravings in each copy signed by Lucifer instead of Aristide de Torchia stand for hidden authorship, the Devil's hand inside a human book. Their subtle differences from the "AT" plates drive the plot, and gathering all nine becomes the difference between a fake rite and a real one.
The hanged bookseller
The bookseller found hanged in a pose copied from one of the book's engravings shows the text enacting itself in the world. Art stops being description and becomes instruction, warning Corso from the start that the engravings are not decoration.
Green Eyes
The woman who shadows Corso, saves him, and vanishes at a gas stop stands for the book's will walking beside him. Her changing face and eyes during the burning-castle scene, and her likeness in the true ninth engraving, mark her as the text's living image.
The burning castle
Balkan's failed rite leaves the castle in flames, the fire that kills him backlighting Corso and Green Eyes. It mirrors the story's opening history, Torchia burned for heresy, and becomes the threshold Corso returns to when the gates open with light.

Spoilers

Ending explained

The ending refuses the two outcomes a reader expects. Balkan performs the rite correctly by every visible measure and burns anyway, because one plate is forged, so the story punishes not doubt but carelessness, the collector who wanted the book as a trophy. Corso, who never tried to use the text, ends up holding all nine authentic engravings, and the gates open on their own. One reading is that the book chooses its reader: the dealer who followed evidence honestly is the one the Devil's authorship admits. Another is that Corso simply walks into light and we are free to decide what he finds, since the story shows the gates and the glow, nothing beyond. Either way the punchline is structural: authentication was never a job, it was a selection process, and the expert passed it. That is why the fade to brightness lands, it converts a bibliographic errand into an initiation without explaining a thing.

For class or book club

Discussion questions

  1. 1.Is Corso rewarded or claimed? Weigh whether the gates opening for him read as initiation, as capture, or as an deliberately open door the reader must interpret.
  2. 2.The plot kills every owner of a copy but spares the man hired to compare them. What does the book suggest about the difference between possessing a text and understanding it?
  3. 3.Balkan's rite fails on a forged engraving while his scholarship was otherwise sound. Discuss how the story uses forgery and expertise to define who deserves access to the supernatural.

A fair critique

Where it falls short

The pacing is deliberately unhurried, and readers expecting a horror thriller may find the middle stretches given over to plate comparisons, travel, and conversation rather than chills. The supernatural is kept mostly at the edges, so the menace can feel distant until the final act. The ending explains little by design: the ninth engraving's meaning, Green Eyes' nature, and what lies beyond the gates are all left to inference, which some readers will find evocative and others unsatisfying. Several supporting figures exist mainly to own a copy and die, giving the body count a functional, schematic feel.

In one sentence

A skeptical book dealer hired to authenticate a text that can summon the Devil follows the evidence until the evidence opens a door for him.

Is it for you?

Who should read it

Readers who like their occult fiction bibliographic, atmospheric, and ironic, where the detective work matters as much as the dread. Also for anyone drawn to endings that open a door instead of closing one.

4 questions

Quick quiz: how well do you know tess?

Question 1

1Why does Balkan hire Corso?

Question 2

2What distinguishes three of the nine engravings in each copy?

Question 3

3Why does Balkan's rite at the castle fail?

Question 4

4Where does Corso find the authentic ninth engraving?

0 of 4 answered

FAQ

Who wrote tess?

tess was written by Tess Gruber.

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