Ruby Menace, authored by Lisa Lovell, is a thrilling entry into the world of supernatural mysteries, blending a rich tapestry of intriguing characters with a plot that keeps readers on the edge of their seats from start to finish. This novel, although rooted in the fantasy genre, stretches its limbs into the realms of romance, horror, and drama, making it a multifaceted story that appeals to a wide range of readers.

The protagonist, Elena Hart, is a vividly drawn character whose depth and complexities make her unforgettable. Her journey begins in the seemingly mundane town of Glimmer Creek, a place shrouded in secrets and whispered legends. Elena's return to her hometown is painted with layers of intentions—some clear and some hidden even to her. Following the death of her grandmother, she inherits an ancient ruby necklace that thrusts her into a world of supernatural delights and dangers.

Lisa Lovell does an exceptional job of creating a thrilling atmosphere, largely through her adept use of descriptive language and pacing. The narrative grips you early on with a subtle build-up of tension and meticulously laid-out scenes that fuse Elena’s everyday world with the supernatural layers that underpin it. As Elena delves deeper into the mystery of the ruby necklace, she uncovers not only her grandmother's secretive past but also a lineage that binds her to the spiritual energies of Glimmer Creek.

The supernatural elements in Ruby Menace are both original and compelling. Lovell introduces an array of spectral entities and otherworldly beings that are both enchanting and terrifying. Each creature Elena encounters is beautifully detailed, pulling from various mythologies while presenting a unique spin that keeps the lore feeling fresh and intriguing. Particularly engaging is the sequence involving the spectral wolf, a guardian of sorts, whose interactions with Elena provide not only a backbone to the story’s mystical aspects but also essential growth to her character.

No less significant is the cast of secondary characters who surround Elena. Each one is meticulously crafted with their own backstories and motivations, which interlace with Elena’s overarching narrative. From the enigmatic Alex Darkwood, a historian with secrets of his own, to Elena’s childhood friend, June, who provides a grounding, almost homespun wisdom to the supernatural whirlwind, the characters enrich the plot extensively.

Romantically, the book offers a tantalizing slow burn. Elena and Alex’s evolving relationship serves not only as a subplot but as a crucial catalyst for many of the book’s revelations. Lovell handles their growing intimacy with a masterful touch, allowing it to simmer and intensify amidst the chaos of the supernatural events. The balance between the romance and the main plot ensures that neither overwhelms the other, maintaining a seamless narrative flow.

Further, Lovell's foray into themes such as legacy, self-discovery, and the burden of secrets provides a substantial foundation for the more fantastical elements of the story. The way Elena grapples with the revelations about her lineage and the subsequent responsibilities she inherits adds a poignant layer to her character development. Her journey is not just about supernatural survival, but about understanding and embracing her identity.

Structurally, the novel is well-organized, with each chapter delving deeper into the mysteries while effectively maintaining suspense and intrigue. The pacing is taut, with no extraneous subplots diluting the central storyline. Lisa Lovell's prose is eloquent yet accessible, making Ruby Menace a comfortable read for both avid fans of supernatural fiction and newcomers to the genre.

On the criticism front, while the novel is largely compelling and well-structured, some may find the early parts of the book a bit slow as the plot gears up. However, this gradual buildup is essential for the detailed world-building and character development that pay off as the story progresses.

In conclusion, Ruby Menace by Lisa Lovell is a remarkable novel that weaves together the threads of mystery, romance, and supernatural thriller into a cohesive, enthralling narrative. It serves not only as a testament to Lovell's imaginative prowess but also as a compelling invitation to explore the deeper, sometimes darker, aspects of inheritance and destiny. For those who relish a story that combines the allure of ancient mystique with the compelling dynamics of modern character-driven storytelling, Ruby Menace is a must-read.