Lauren Gilley's Dragon Slayer, the third installment in the Sons of Rome series, is a captivating blend of historical fiction, fantasy, and drama that delves deep into the mythos surrounding Vlad Dracula and his lesser-known brother, Valerian. This novel is a rich tapestry of intrigue, betrayal, and redemption, set against the backdrop of a world where immortals walk among mortals, and ancient grudges threaten to unravel the fabric of time itself.

At the heart of Dragon Slayer is the complex relationship between the two brothers, Vlad and Valerian. Gilley masterfully crafts their dynamic, weaving a narrative that explores themes of brotherhood, loyalty, and the heavy burden of past sins. Valerian, or Val, is a particularly intriguing character. His 550-year imprisonment has left him a spectral figure, capable of astral projection but unable to physically interact with the world. This unique predicament adds layers to his character, as he is both a guide and a prisoner, a man of "sharp smiles and smoke" who is as enigmatic as he is tragic.

The novel's setting is equally compelling. Gilley transports readers to 15th century Romania, a land besieged by the Ottoman Empire, where the stakes are as high as the tension between the immortal brothers. The historical elements are meticulously researched, providing a vivid backdrop that enhances the fantasy elements of the story. The siege of Byzantium and the political machinations of the Ottoman court are depicted with a keen eye for detail, immersing readers in a world that feels both fantastical and grounded in reality.

One of the standout aspects of Dragon Slayer is its exploration of the concept of immortality. Gilley does not shy away from the darker implications of eternal life, using Val and Vlad's story to examine the toll that centuries of existence can take on the soul. The immortals in this tale are not invincible gods but rather flawed beings, haunted by their past actions and the weight of their endless years. This nuanced portrayal adds depth to the narrative, inviting readers to ponder the true cost of immortality.

The novel also delves into the theme of redemption. Both Val and Vlad are burdened by their pasts, labeled as "brother-killer" and "traitor" by those who seek to control them. Their journey is one of self-discovery and reconciliation, as they confront the tragedies that tore them apart centuries ago. Gilley handles this theme with sensitivity and insight, crafting a story that is as much about healing as it is about conflict.

Character development is a strong suit of Gilley's writing. Val, in particular, is a fascinating character study. His ability to dream-walk and his status as a prisoner create a sense of isolation and longing that is palpable throughout the novel. His interactions with the "pack of misfits" he guides are filled with tension and camaraderie, providing moments of levity and introspection. Vlad, on the other hand, is portrayed as a force of nature, driven by a desire to stop their wicked uncle, Romulus, and protect what remains of their family. The brothers' relationship is fraught with tension, yet it is also underscored by a deep, unspoken bond that adds emotional weight to their interactions.

In comparison to other works in the genre, Dragon Slayer stands out for its intricate character dynamics and its seamless blending of history and fantasy. Fans of Deborah Harkness's All Souls Trilogy or Anne Rice's The Vampire Chronicles will find much to appreciate in Gilley's nuanced portrayal of immortals and the historical settings that ground their stories. However, Gilley's focus on the familial bond between Val and Vlad offers a fresh perspective, setting it apart from other vampire-centric narratives.

Overall, Dragon Slayer is a compelling addition to the Sons of Rome series, offering a richly layered narrative that is both thought-provoking and entertaining. Gilley's ability to weave together elements of history, fantasy, and drama results in a story that is as immersive as it is emotionally resonant. For readers who have followed the series from the beginning, this installment provides a satisfying continuation of the saga, while also setting the stage for future developments in the battle against the timeless evil that threatens their world.

In conclusion, Lauren Gilley's Dragon Slayer is a must-read for fans of historical fantasy and those who appreciate stories of redemption and brotherhood. Its intricate plot, well-developed characters, and evocative settings make it a standout entry in the genre, ensuring that readers will be eagerly anticipating the next chapter in the Sons of Rome series.