Blood of Hercules - by Jasmine Mas

Here is a summary with spoilers of Blood of Hercules

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• Alexis: the protagonist, a scrappy, sarcastic math genius with a traumatic past. She’s an outsider thrown into a world she doesn’t understand,

• Charlie: Alexis’s foster brother, who she cares deeply about. He does not speak, so they communicate with sign language. 

• Achilles: A masked mentor who exudes power and danger. 

• Patro: Achilles’ counterpart, another mentor to Alexis. Together, they’re known as the Crimson Duo, feared for their ruthlessness in battle.

• Kharon: He’s a professor at the Spartan Academy. He’s manipulative, dangerous, and has his own sinister plans for Alexis.

• Augustus: A son of war, who is very mysterious and dangerous. 

In a mystical realm ruled by the Spartan Federation, the ancient seer Fate foresees a prophecy about a “lost one” who will either save the world or allow the Titans to destroy it. Sparta, once a peaceful immortal civilization, was fractured after humanity’s rise and the Great War between the Olympian and Chthonic Spartans. Though the war ended, tensions remain severe. Zeus and the Olympian leadership push laws designed to weaken Chthonic bloodlines through forced marriages, while Titans continue threatening humanity. The Assembly of Death and the brutal Spartan Gladiator Competition become tools of control, forcing Spartans to constantly prove their worth through violence and survival.

Far from Sparta, Alexis Hert grows up in a Montana trailer park with abusive, drug addicted foster parents. She is neglected, beaten, and treated as an outsider for most of her childhood. Her only comfort is Nyx, an invisible snake only she can see and speak to. When another abandoned child named Charlie is placed with the family, Alexis becomes fiercely protective of him. After overhearing plans to get rid of Charlie, Alexis hides him while violence erupts inside the trailer. A monster appears during the chaos, Alexis’s foster mother dies, her foster father is imprisoned after Alexis blames him for the violence, and Alexis permanently loses hearing and sight on one side of her face. She and Charlie are left alone to survive.

Years later, Alexis takes a merit test hoping to secure financial support for herself and Charlie. Instead, sealing the test with blood awakens her hidden Spartan heritage. She is transported across the world to Sparta and immediately thrown into a deadly initiation massacre where recruits fight each other to survive. Alexis manages to endure the slaughter, helped partly by Nyx’s venom, and is selected for the Crucible, a year long Spartan trial designed to forge warriors into gods. At the Spartan War Academy, initiates face relentless physical punishment, brutal mountain runs, advanced academic training, and deadly swims across the River Styx where the ferryman Kharon kills anyone too weak to survive. Alexis struggles with exhaustion, hunger, and constant threats of death while forming alliances with fellow initiates Drex Chen, Helen, and Maximum.

Alexis is assigned mentors Patro and Achilles, the feared Crimson Duo. Achilles hides behind a mask and rarely speaks, while Patro openly believes Alexis is too weak to survive because she is considered a Spartan mutt, half human and half immortal. Though they initially resent mentoring her, both begin noticing her intelligence and resilience. Alexis gradually proves herself academically and physically despite the academy’s cruelty. Meanwhile, Kharon, the Chthonic heir and ferryman of the Styx, becomes obsessed with her after witnessing her powers during a training exercise. Alongside Augustus, another Chthonic heir, Kharon begins manipulating events around Alexis. Invisible hellhounds follow her constantly, and both men believe Alexis may hold the key to preserving powerful Chthonic bloodlines against Zeus’s marriage laws.

As Alexis trains, she discovers abilities she cannot explain. She can communicate with creatures, including Nyx and dangerous sirens, and she accidentally injures another initiate with strange powers during a swim through the Styx. At Spartan parties and social events, Kharon and Augustus become increasingly possessive of her. After a drunken interaction with sirens, Alexis receives horrifying gift boxes containing the eyes of a siren and later the eyes of Maximum after he confesses romantic feelings for her. Each box also contains jewelry that Alexis unknowingly accepts as part of a Chthonic betrothal ritual. Threatening notes continue appearing, while Kharon frequently invades her dreams and pushes her toward accepting her role within Spartan politics.

The growing political tension explodes during Titan attacks and the Initiation Ball. At a masquerade celebration, Alexis dances with two masked men who later reveal themselves as Kharon and Augustus. Shortly afterward, Titans attack and Alexis and Helen are kidnapped by Theros, heir to Zeus and member of the Olympian leadership. Theros reveals he intends to kill Alexis to strengthen his own claim to power. Bound and left to die beside Helen, Alexis brutally tears apart her own injured hands to escape and kills the Titan attacking them. During the confrontation, Alexis unleashes terrifying Chthonic powers capable of inflicting agony and death. Her eyes glow red before all of Sparta, revealing her true identity as the long lost daughter of Hades and Persephone. The revelation shocks both Olympian and Chthonic Houses and places Alexis directly at the center of the prophecy and Sparta’s political war.

The truth about Alexis’s heritage only worsens her situation. Zeus demands she marry a Spartan heir to restore her “honor,” since Spartan society views female Crucible participants as dishonored regardless of survival. Kharon and Augustus reveal that Alexis already accepted their betrothal by opening and keeping the velvet gift boxes they sent her. The jewelry and gifts formed a binding Spartan engagement ritual that Alexis unknowingly completed. Furious and overwhelmed, Alexis temporarily escapes back to Montana with Charlie, spending one final peaceful night in their small box house. Soon afterward, Kharon, Augustus, Patro, and Achilles track her down and insist she return for her own protection. Alexis agrees only if Charlie is allowed to stay safe with her.

Alexis is forced into a binding Spartan marriage with Kharon and Augustus under ancient vows she cannot break. Though the marriage is politically motivated, both Chthonic heirs remain deeply possessive of her because of her bloodline and powers. Alexis vows revenge for the manipulation and loss of her freedom. At the same time, Patro and Achilles begin regretting their failures to protect her and realize they no longer see her as weak. Both men privately vow to save Alexis from the situation they believe she never deserved. Meanwhile, Alexis struggles with the reality of her Chthonic powers, her violent abilities, and the prophecy surrounding her existence. She remains caught between Olympian and Chthonic factions while Titans continue threatening the world, making her both a weapon and a symbol of Sparta’s future.