The Sedona Rift

A Griffin Knight Cosmic Thriller

Fiction - Thriller - General
Kindle Edition
Reviewed on 10/31/2026
Buy on Amazon

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    Book Review

Reviewed by Jamie Michele for Readers' Favorite

Miguel Angel Hernandez Jr.’s The Sedona Rift follows private investigator Griffin Knight after photographer Lena Petrova witnesses an impossible green flash near Cathedral Rock while searching for her missing brother, Mikhail. At the scene, Griffin’s Smart Goggles detect unfamiliar residue and a repeating signal inside the surrounding stone, while Lena describes an enormous armored figure accompanied by a predatory creature with glowing green eyes. The evidence leads Griffin across Sedona Red Rock country, where local stories about vortex energy begin matching readings his equipment cannot explain. As covert interest gathers around the same locations, Griffin realizes someone else already knows the desert is hiding something extraordinary. With each new signal drawing him closer to Bell Rock, Griffin must determine what entered Sedona, why the landscape is reacting to it, and who intends to reach it first.

Miguel Angel Hernandez Jr.’s The Sedona Rift is brilliant cosmic science fiction, and Sedona’s vortexes feel uncanny. The suspense is fantastic, especially when Alister Knight, Griffin’s cybernetically enhanced brother, discovers altered gravity can defeat his augmented reflexes. I also love the supporting cast. Noah Jackson, a forensic analyst from Griffin’s earlier cases, is my favorite, and his whiteboard case maps give their friendship an easy familiarity. Xavier Heartwood, a Seattle ghostrunner who recovers encrypted memories from damaged technology, adds unpredictability once his Jackshards enter the investigation. The science fiction elements are creative and blend organically into the detective world, from illegal cybernetics to machinery that changes gravity. The pacing keeps moving as covert military involvement widens the scale. Well written and unsettling in the best way, readers who enjoy cosmic detective thrillers will adore this.

Essien Asian

When Griffin Knight got a call that would take him from the comfort of home to the Arizona desert, he expected a typical missing-person case. What confronts the detective on the Cathedral Trail is a dead body that defies conventional logic. Griffin recruits his brother to help him decipher the puzzle. As he digs deeper, he uncovers a conspiracy that has government agents on edge and an impending showdown that may decide the fate of the planet. Griffin will have to be at his best to survive this case in Miguel Angel Hernandez Jr.'s The Sedona Rift: A Griffin Knight Cosmic Thriller.

Miguel Angel Hernandez Jr. shows fans that he is just as comfortable crafting a science fiction piece as he is with urban crime in The Sedona Rift. The world-building blends American desert scenery with canine-like creatures and futuristic weaponry that will keep science fiction purists glued to the narrative. The narrative shifts to fast-paced gunfights where Griffin must show the kind of tactical awareness that impresses action enthusiasts, rather than his usual step-by-step analysis of crime scenes and suspects. The one constant in the narrative style is its shifting perspectives among the players in the mystery. The author pairs these features with a graduated pace and an engaging origin story for Griffin's brother that fills in gaps in their childhood and explains the subtle sibling rivalry perceptive readers will pick up on. The author raises the bar for immersive reading entertainment with The Sedona Rift.

Danica Naude

The Sedona Rift by Miguel Angel Hernandez Jr. follows Detective Griffin Knight after an odd rift appears in the sky over Sedona, Arizona, causing bizarre energy disruptions and violating the standard laws of physics. While government official Hale is making efforts to contain the situation, Griffin and his brother Alister realize that the danger is much greater than it at first seems. Since they come from a future in which similar rifts have destroyed whole worlds, the brothers know what the consequences are if the matter is not brought under control. They soon find out that the rift is connected to the alien entity Vor'Kan. As the threat increases, Griffin and Alister have to go through the Arizona desert to discover a method of closing the rift before it results in a catastrophe.

Griffin is an interesting character since his cynicism and previous experiences affect the way he handles danger; instead of withdrawing from difficult situations, he is determined to find a solution even though the odds are against him. Alister, on the other hand, stands out for his loyalty to his brother and his practical method of dealing with problems. I also found Vor'Kan to be a threatening figure who shows no regard for human suffering. The story throws the reader into the action right from the start and keeps a constant pace as the brothers attempt to prevent disaster. Readers who like stories involving encounters with aliens, strange phenomena, and the effort to avert disaster should find The Sedona Rift an interesting read.