Books like Sleeper Code by Tom Sniegoski

Dan Brown’s thriller follows symbologist Robert Langdon and cryptologist Sophie Neveu as they race through Paris to solve a murder at the Louvre, uncovering a conflict between the Priory of Sion and Opus Dei over a controversial religious secret.

Harvard professor Robert Langdon races across Italy to decipher a deadly riddle tied to Dante’s Inferno, uncovering secret passages, art, and cryptography before the world is changed forever.

Neal Stephenson explores World War II cryptography and 21st‑century data security through intertwined stories of a wartime code‑breaker, his grandson, and a secret mission to create a "data haven."

Dan Brown’s techno‑thriller Digital Fortress follows the National Security Agency’s attempts to protect an unbreakable code, raising questions about state surveillance, civil liberties, and the ethics of wielding advanced computer security.

In a world split by blood, a lowly Red named Mare Barrow discovers a hidden power that threatens the ruling Silver elite, forcing her into the palace as a fake princess while she secretly fuels a rebellion.

After a betrayal, clones of Project Osiris split into pairs—Eli & Tori, Amber & Malik—fleeing the law and chasing the mob boss who gave them life, all while surviving the criminal world they entered.

In Serenity, New Mexico, the ideal town of honesty, 30 children uncover a secret that links their crime‑free community to famous criminal masterminds, forcing them to question everything they thought they trusted.

Jason Bourne, a deep‑cover operative with no memory, is rescued after a beachwreck and discovers a bank account embedded in his body that leads him to Switzerland and the truth about his past.

Seventeen‑year‑old Alexa Hollen hides as a boy to join Antion’s army, earning a place in Prince Damian’s elite guard. When an evil king threatens the realm, she must use her wit and sword skills to protect her prince and defeat the sorcerer who killed her parents.

Vega Jane of the secluded village Wormwood must track missing hero Quentin Herms into the perilous Quag, a dark forest filled with beasts and conspiracies, while uncovering the town’s deadly secrets that threaten her life.

Teen protagonist Tom Lovett has a rare form of narcolepsy that hides a double life as a sleeper assassin. His alternating personalities, one murderous, one vulnerable, lead him to confront both a sinister agency and his own inner darkness.

Fourteen‑year‑old Itchingham Lofte discovers a mysterious radioactive element and must outwit a government agency, a greedy teacher, and a sinister corporation that all want it for their own ends.

A crown‑candled romance turns into a perilous quest when Alexa, betrothed to King Damian, must outwit a mind‑controlling enemy to rescue a captured prince and save her kingdom.

A rebellious teen disguises herself as a boy to flee an arranged marriage, stows aboard a smuggler’s airship, and embarks on a thrilling adventure through interstellar skies.

"I very much need to be dead." These are the chilling last words left by a man who had everything to live for but took his own life. In the void that remains stands his widow, FBI agent Jane Hawk, surrounded by questions destined to go unanswered unless she does what all the grief and fury inside her demand: Find the truth, no matter what. People of talent and accomplishment, people seemingly happy and sound of mind, have recently been committing suicide in surprising numbers. A disturbing pattern is beginning to emerge. Jane is determined to give up everything to find out why. And if that means going rogue and becoming America's Most Wanted, then so be it. Those arrayed against her are legion, and devoted to protecting something profoundly important-or terrifying-enough to exterminate any and all in their way. But Jane is as clever as these enemies are cold-blooded, as relentless as they are ruthless. And she is driven by a righteous rage they can never comprehend. Because it is born of love.

Three teenage friends—Dak, Sera, and Riq—return to ancient Greece to protect the youth of Alexander the Great, facing rival time travelers in a battle that could reshape history.

A thrilling mystery about a young detective tasked with uncovering a dangerous secret society.

The Athena Project follows a team of elite U.S. Army Special Forces women—code‑named Athena—on a perilous overseas mission to thwart terrorism.

164 pages ; 20 cm

After years of exile, Kestra Dallisor is summoned back to Antora, only to be kidnapped during her return. Now, with a loyal friend beside her, she must outwit enemies who seek the legendary Olden Blade to overthrow a tyrannical ruler.

Mayhem follows the adventures of a young student navigating school life while confronting criminals and conspiracies, blending action, good versus evil, and youthful curiosity.