When the dead start talking through machines, The Circle is called in. Hidden beneath Houston, The Circle-a seventeen-member team of psychics, scientists, and strategists-operates from Helix Hollow, a labyrinth of sigil-protected technology and mind-bending prototypes. But when spectral echoes begin appearing inside city networks, the team faces their most dangerous case yet: a necromancer who merges code with the souls of the dead. A name ripples through the digital ether: H. Echolalia-a techno-necromancer obsessed with bending consciousness itself. His creation, The Revenant Protocol, threatens to turn every reflective surface, every camera, every data feed into a gate for the forgotten dead. Houston's skyline begins to whisper. Screens breathe. The city remembers everything-and it refuses to forget. As Charlotte Reigns, clairvoyant lead of The Circle, unravels the coded hauntings, she discovers that this isn't just necromancy-it's an algorithmic resurrection. With Marin Vale's groundbreaking psychic tech, Sparrow's AI infiltration systems, and Ayla's elemental power, the team must confront a hybrid enemy born from both magic and machinery. But the deeper they dive, the more personal the battle becomes. The necromancer's voice seeps into their dreams, mirrors, and minds. And when he targets The Circle's home-the sentient AI system known as Helix-the team must choose between saving their sanctuary or saving the world. From the neon sprawl of Houston's underground to the storm-lit rooftops above, The Revenant Protocol blends supernatural intrigue with advanced technology, spiritual warfare, and unrelenting suspense. Each member of The Circle must wield their unique psychic gifts in perfect synchrony-or risk losing their souls to a digital afterlife that refuses to die.