The Grandest Game, #1

The Grandest Game

Name: The Grandest Game (The Grandest Game, #1)
Author: Jennifer Lynn Barnes

by Jennifer Lynn Barnes

Genre

Young Adult, Mystery, Suspense, Thriller

Year

2024

Pages

351

Contents

Overview

Jennifer Lynn Barnes’s The Grandest Game follows a new high-stakes competition created by Avery Grambs, the Hawthorne heiress whose games promise life-changing money and dangerous secrets. Seven contestants arrive on Hawthorne Island to compete for a multimillion-dollar prize, but the game quickly becomes more than a contest of riddles, clues, and hidden rooms.

The story centers on Lyra Kane, a sharp and guarded student haunted by her biological father’s death; Gigi Grayson, a chaotic and brilliant puzzle solver determined to prove herself; and Rohan, a calculating strategist with his own urgent need to win. Around them are the Hawthorne brothers, the Grayson twins, and other competitors whose motives are tangled in family loyalty, revenge, grief, and ambition.

As the Grandest Game unfolds, its puzzles draw the players toward buried histories and private wounds. The book explores trust, identity, legacy, power, and the cost of playing games designed by people who know exactly where others are most vulnerable.

Plot Summary ⚠️ Spoilers

One year before the Grandest Game begins, Rohan is exiled from London by the dying Proprietor of the Devil’s Mercy, the secretive power structure that raised him. To become the Proprietor’s heir, Rohan must raise ten million pounds without using the Mercy, its members, or its influence. Hearing that Avery Grambs’s Grandest Game is an annual competition with an enormous prize, he sees a loophole and sets out to enter.

Lyra Catalina Kane, meanwhile, is a nineteen-year-old student barely holding herself together after recovering memories of her biological father’s suicide. Her dreams include a calla lily, a gun, the word omega, and the accusation that a Hawthorne was responsible. When unpaid college costs threaten her enrollment and her parents may have to sell Mile’s End, the family home, Lyra prepares to drop out. Instead, she receives a hand-delivered metal ticket to the Grandest Game with a note saying she deserves it.

Gigi Grayson is also determined to enter, but on her own terms. Though Avery offers her a chosen-player ticket through Grayson Hawthorne, Gigi refuses because she wants to earn a wild-card spot and prove her strength. She is also protecting her twin, Savannah Grayson, from the truth about their father, Sheffield Grayson: he is dead after trying to kill Avery, not merely absent. Rohan quietly manipulates the final wild cards, steering one toward Gigi and entering the game himself.

The players arrive at Hawthorne Island in groups. Lyra meets Jameson Hawthorne, Grayson, and Rohan, and her anger toward Grayson resurfaces because she once called him after her father’s death and he dismissed her. The contestants are given until sunset to explore the island for clues and reach the new house on the north point. Lyra finds an Abraham Lincoln quote carved in the burned ruins and later discovers burning notes bearing versions of her father’s names. Rohan argues that the notes are sabotage by another player, not an official clue. Gigi finds chalk clues, diving equipment, a necklace, and a knife, but Knox Landry steals the bag. Rohan and Savannah find clues of their own, including a Donne quotation and a metal disk Rohan later wins from an hourglass clue.

At sunset, the players enter the cliffside house, receive keys, costumes, and masks, and attend a masquerade ball. Avery formally opens the second Grandest Game and announces a twenty-six-million-dollar prize. The first major phase becomes the Grandest Escape Room: the players are divided into teams and must escape the house and reach the north dock by dawn. The surprise eighth player is Grayson, who is placed with Lyra and Odette Morales. Rohan and Savannah are paired as Diamonds, while Gigi, Brady Daniels, and Knox become Clubs.

Each team solves connected rooms built from objects, wordplay, and personal history. Lyra, Grayson, and Odette decode anagram puzzles, a sword clue, riddles, Greek letters, silent film reels, and Odette’s old movie Changing Crowns. Their puzzles force Lyra to relive her father’s suicide and the bloody omega-like symbol he drew, while Grayson helps ground her and admits he was wrong to push her away. Odette reveals that she once worked for Tobias Hawthorne’s law firm, is dying of glioblastoma, and has secrets tied to Tobias and possibly Alice Hawthorne, Grayson’s supposedly dead grandmother.

Gigi’s team struggles as much with trust as with puzzles. Brady and Knox share a painful past involving Calla Thorp, Orion Thorp, and Severin, the survivalist who trained them. Brady claims he needs the prize for his mother’s cancer treatment, but his real motive is tied to Calla. Gigi discovers that the necklace from the hidden bag contains a listening device and deduces that the bag, wetsuit, oxygen tank, and knife may not be part of the official game at all. The possibility of an outsider on the island grows stronger, but Gigi delays warning Avery because Brady begs her to keep the game going.

Rohan and Savannah’s partnership becomes a volatile mixture of rivalry, attraction, and negotiation. They solve anagram, piano, chess, Truth-or-Dare, blacklight, and game-board puzzles while revealing pieces of themselves. Rohan admits ties to the Mercy and traumatic memories of being forced into dark water; Savannah reveals that she plays for her father and later for revenge. Their temporary alliance is built on the understanding that they will cooperate until they no longer need each other.

A sudden blackout interrupts the finale rooms. Grayson concludes it is not an intended Hawthorne twist because it lacks proper foreshadowing, and Gigi’s suspicions about outside interference sharpen when a familiar voice answers through the bug. When power returns, Nash says the game continues. Lyra’s team escapes after using a hint challenge involving portraits and a calla lily, while Rohan and Savannah solve their way to the shore. Gigi, Brady, and Knox also escape, but Gigi falls while running to the dock. Knox carries her, and Clubs miss the dawn deadline, eliminating the team.

After the elimination, Brady reveals that his mother was never sick; Severin had pancreatic cancer and died. Odette withdraws from the game and transfers her spot to Brady, while Gigi refuses an unearned place. Odette then tells Lyra and Grayson that Lyra’s father’s accusation may refer not to Tobias but to Alice Hawthorne, and she insists that some truths remain unanswered. During the break before phase two, Rohan learns Savannah plans to use the winner’s platform to accuse Avery and the Hawthornes, claiming Avery killed Sheffield. Lyra learns that Avery, Jameson, Grayson, and the Hawthornes did not invite her; an unknown person sent her ticket, likely connected to the blue-ink notes targeting her. This realization, along with Grayson’s confession that he cared and tried to find her, leads Lyra to kiss him.

Gigi, still eliminated but holding crucial evidence, returns to the place where she found the hidden bag and confronts the unseen listener. She suspects Eve or the dangerous man she calls Code Name Mimosas may be involved and keeps the bug to give to Xander. Before she can leave, a man grabs her from behind, presses a sweet-smelling rag over her mouth, and calls her sunshine, confirming that the danger outside Avery’s official game has become immediate.

Characters

Lyra Catalina Kane

Lyra is a guarded college student and Grandest Game contestant whose need for the prize is tied to saving Mile’s End, her family home. Her recurring memories of her biological father’s suicide, the omega symbol, and the accusation against a Hawthorne make her central to the book’s mystery.
Grayson Hawthorne

Grayson begins as a Hawthorne rule enforcer but is revealed as the unexpected eighth player. His past dismissal of Lyra, his protectiveness, and his family ties force him into both the game’s puzzles and Lyra’s search for answers.
Gigi Grayson

Gigi is Savannah’s twin and Grayson’s half sister, a brilliant, impulsive puzzle solver who earns her way into the game rather than accepting a direct invitation. Her discoveries about the hidden bag, bugged necklace, and outside intruder make her crucial even after elimination.
Savannah Grayson

Savannah is Gigi’s twin, a fierce and controlled competitor whose drive to win is tied to her father and revenge. Her volatile alliance with Rohan reveals her anger at Avery and the Hawthornes.
Rohan

Rohan is a strategist raised by the Devil’s Mercy and exiled until he can raise a ten-million-pound buy-in. He enters the Grandest Game to secure his future power and treats other players as pieces until his alliance with Savannah complicates that approach.
Avery Grambs

Avery is the Hawthorne heiress and creator of the Grandest Game. She designs and oversees the competition with the Hawthorne brothers, though later revelations show not every invitation or threat on the island came from her.
Jameson Hawthorne

Jameson helps Avery run the Grandest Game with theatrical flair and puzzle-maker confidence. His clues, announcements, and challenge structures shape the contestants’ progress through the house.
Xander Hawthorne

Xander is one of the Hawthorne brothers helping operate the game, often supplying dramatic reveals, gadgets, and comic energy. He also becomes a trusted emotional presence for Gigi when she is injured and hiding dangerous information.
Nash Hawthorne

Nash helps oversee the Grandest Game and acts as a calmer Hawthorne authority. He warns Rohan that Hawthorne games require heart and later treats Gigi after her fall.
Odette Morales

Odette is an elderly contestant, former actress, lawyer, and dying woman whose past is tied to Tobias Hawthorne. She helps Lyra and Grayson solve puzzles while withholding key truths about Tobias, Alice, and Lyra’s father.
Brady Daniels

Brady is a young prodigy and competitor with expertise in physics, anthropology, symbols, and patterns. His history with Knox, Calla Thorp, and Severin drives many of the Clubs team’s emotional conflicts, and he returns to the game when Odette transfers her place to him.
Knox Landry

Knox is a ruthless, capable contestant tied to the Thorp family and to Brady’s past. His claustrophobia, bond with Brady, connection to Calla, and willingness to do what he thinks necessary make him both dangerous and vulnerable.
Calla Thorp

Calla is an absent but central figure in Brady and Knox’s shared history. Her disappearance, relationship with Knox, and connection to Orion Thorp and Severin shape Brady’s motives and Knox’s secrecy.
Orion Thorp

Orion Thorp is Knox’s powerful sponsor and Calla’s father. He is implicated through Brady and Knox’s accounts in Calla’s disappearance and in sponsor interference surrounding the Grandest Game.
Severin

Severin was a former black-ops survivalist who trained Brady, Knox, and Calla after rescuing the boys. His death from pancreatic cancer is the truth behind Brady’s earlier lie about needing money for his mother.
Code Name Mimosas

Code Name Mimosas is Gigi’s private name for a dangerous man from her past who once claimed to know Grayson. His voice on the bug and the final attack on Gigi suggest he is the hidden intruder manipulating events on Hawthorne Island.
Tobias Hawthorne

Tobias Hawthorne is the deceased patriarch whose games, List, and past secrets continue to shape the competition. His connection to Odette, Alice, and possibly Lyra’s father makes him central to the book’s buried mystery.
Alice Hawthorne

Alice Hawthorne is Grayson’s supposedly dead grandmother, newly raised by Odette as a possible meaning of the phrase “A Hawthorne did this.” Her alleged return after being considered gone reframes Lyra’s family mystery.
Thomas / Tommaso / Tomás

Lyra’s biological father appears through dreams, recovered memories, aliases, and clues planted in the game. His suicide, final accusation, and omega symbol drive Lyra’s search for the truth.
Keith Kane

Keith is Lyra’s adoptive father and the father who raised her. His possible need to sell Mile’s End gives Lyra a practical and emotional reason to compete.
Lyra’s mother

Lyra’s mother is a writer whose financial difficulties contribute to Lyra’s college crisis. Her love for Lyra and past escape from Lyra’s biological father anchor Lyra’s family life outside the game.
Sheffield Grayson

Sheffield is Gigi and Savannah’s father, believed by Savannah to have been killed by Avery. The truth of his death is hidden from Savannah for much of the story and becomes the basis for her revenge.
The Proprietor

The Proprietor is the dying ruler of the Devil’s Mercy who sets Rohan’s succession trial. His demand that Rohan raise ten million pounds without Mercy resources sends Rohan into the Grandest Game.
Zella

Zella is the duchess positioned as Rohan’s rival for control of the Devil’s Mercy if he fails. Her connection to Jameson and the Mercy signals that Rohan’s private stakes are known to the game makers.
Eve

Eve is a wealthy figure with a twisted Hawthorne connection whom Gigi suspects may be linked to the hidden intruder. Grayson’s past warning to stay away from Eve makes the possibility especially dangerous.

Themes

In The Grandest Game, Jennifer Lynn Barnes turns a puzzle competition into a study of inheritance: not just money or property, but secrets, wounds, loyalties, and names passed down like loaded weapons. The island’s riddles repeatedly force characters to confront what they have inherited from their families and what they might choose to become instead.

Games as truth machines. The Grandest Game is built from masks, escape rooms, anagrams, ciphers, and hidden objects, but its real purpose is exposure. Truth-or-dare forces Rohan and Savannah to reveal trauma, ambition, and rage; the drawing challenge makes Lyra, Grayson, and Odette truly look at one another; and the escape rooms turn ordinary objects into tests of perception. The puzzles reward intelligence, but they also punish evasion: players advance only when they see what is in front of them, emotionally as well as logically.
The burden of family legacy. Nearly every major player is trapped in a family story. Lyra is haunted by her biological father’s suicide and his accusation that “A Hawthorne did this.” Grayson lives under Tobias Hawthorne’s legacy of manipulation and impossible standards. Savannah’s drive for revenge is tied to her belief that Avery killed her father, while Gigi carries the secret of Sheffield Grayson’s death to protect her twin. Even Rohan’s quest for the Devil’s Mercy is framed as a twisted inheritance he must earn through exile and control.
Control versus vulnerability. The characters survive by managing how others see them. Lyra runs, deflects, and refuses to seem fragile; Savannah turns herself into ice and ambition; Rohan treats people as pieces on a board; Gigi hides fear behind exuberance. Yet the game repeatedly breaks these defenses. Grayson admitting he was wrong, Rohan revealing his earliest memory of drowning, and Gigi discovering Brady’s lies all show that vulnerability is dangerous—but also necessary for real connection.
Trust in a world of manipulation. Alliances form under conditions of guaranteed betrayal. Rohan and Savannah explicitly agree to cooperate until they destroy each other. Gigi wants to trust Brady but learns he has misled her about his motives. Lyra distrusts the Hawthornes, yet Grayson becomes the person who steadies her through trauma. The novel suggests trust is never simple; it is a risk taken without full information.
Hidden histories and the violence of silence. Odette’s past with Tobias, the mystery of Alice Hawthorne, the omega symbol, Calla Thorp’s disappearance, and the bugged necklace all point to buried stories resurfacing. Silence protects some characters, but it also endangers others. By the end, the game’s official puzzles are inseparable from a darker, unauthorized game, proving that secrets do not stay buried—they design the next trap.