Alia: The Horseless Horsemen Book 4 by Ross C. Miller opens with Michael finally purchasing an old fixer-upper house after a string of mysteriously failed deals. As he begins renovations, an odd detail captures his attention: a small room with an exterior-grade door that locks from the outside. While fixing this door, Michael unwittingly releases the spirit of Alia, a young girl murdered over seventy years earlier and trapped within the room ever since. Alia has spent decades watching and learning, and now that she’s free, she enlists Michael to help her liberate other children similarly lost to violent ends. As Michael becomes entangled in Alia’s mission, he realizes that a simple act of home improvement has pulled him into a supernatural conflict far beyond his understanding. This novel kicks off the second Horseless Horsemen trilogy, also known as the Michael Trilogy, blending ghostly mystery with an emotionally driven tale of justice and redemption.

Author Ross C. Miller never fails to entertain me right from the opening pages, and this is a book that’s brimming with atmosphere to bring us a chilling and original paranormal story with stacks of emotional depth and suspense. There’s a delicate balance in suspense novels that keeps them intriguing and tense without getting so slow that it raises the temptation to skip ahead. The book is suitably detailed to combine mystery, horror, and heart so that you don’t want to miss a beat of this haunting and heartfelt journey. Michael and Alia have a fantastic clash of personalities, and the more our unwitting protagonist gets mixed up with the idea of a ghost seeking justice, the more the intelligence and compassion of the plot shine, breathing new life into the genre with interesting emotional stakes. It’s certainly a gripping and thought-provoking read as a result, and with plenty of the typical supernatural thrills to satisfy fans of the paranormal genre too. Overall, I would certainly recommend Alia for fans of ghost stories and supernatural thrillers.

The Horseless Horsemen: Alia by Ross C Miller is the fourth book in the titular series and the first in his newest trilogy. In book one, Justice, a veteran and engineer, dies in Fukushima, leaving his partner, Robert, to wrestle with deep remorse. Years pass, and a broken man wanders, haunted by fragments of a forgotten life and driven to confront darkness. The second book follows Rita, who reawakens in the murdered bodies of strangers, uncovering a grim pattern and encountering the decaying Grey Man. In book three, Gerrie, raised in isolation, emerges as a hunter, pursuing an ancient, shape-shifting evil rooted in humanity’s earliest, most disturbing history. Now, Michael buys a long-abandoned house and uncovers a room with a disturbing past. Inside waits a child's restless spirit, bound for decades and now free, drawing him into a chilling quest. “Only a demon can make a monster. A monster can only make more monsters.”

The Horseless Horsemen: Alia by Ross C Miller is a well-constructed novel with clear, confident writing that has all the hallmarks readers have come to expect from Miller's prolific canon. He respects returning readers by maintaining continuity with the Horseless Horsemen series while giving newcomers just enough background to follow along without confusion. The supernatural elements are more than atmosphere; they carry emotional force, especially when Alia explains that a ghost cannot find peace until a body is unearthed. The shift between characters, Michael, Rita, Kevin, Alia, Germaine, and even the police and others, adds to the momentum and helps readers understand how events affect more than one person. The story’s strongest element is its firm grounding in Christian faith. Alia’s trust in Jesus isn’t presented as a vague feeling; it shapes every action she takes and becomes a source of calm in moments of fear. The book never dances around its purpose; it delivers this plainly, with precision and care. Very highly recommended.

Alia is the fourth book in Ross C Miller's Horseless Horsemen series. Michael has finally bought a house after considering many options. It’s perfect for him as he can work just fine in the small room he intends to use. While getting the room ready, he discovers it has a heavy exterior door. It is odd. But fixing the door offers far more than he could ever have expected. The door reveals the ghost of Alia, a nine-year-old who was murdered. Her ghost has been trapped in the room for seventy years, and it has watched and learned a lot over the years. Now that she is out, she needs Michael’s help to release other murdered children.

I am a fan of Ross C Miller's novels, and Alia just raised the bar for the Horseless Horsemen series. You’ll be drawn into the narrative by the creepiness, which is cleverly introduced. The transition from Michael’s normal activities to the encounter with the ghost of Alia is ingeniously handled. I felt the chills. Then the pathos. Then I wanted to know what happens next as Michael sets out on a mission to help Alia. The writing is superb, with terrific descriptions and dialogue that feels natural. Characterization is perfectly accomplished, and the author delivers richly drawn characters. Michael initially seems confused, but he grows in his resolve to unravel the mystery of the trapped ghosts. There is much to enjoy in this paranormal story, from the exquisite writing to the memorable characters, from the elaborate world-building to the conflict that propels the story forward.

The Horseless Horsemen, Book 4: Alia by Ross C. Miller is an exciting paranormal novel about Michael, a middle-aged man dealing with life's struggles after two failed marriages and personal and work setbacks. After buying a fixer-upper house in Riverton, Michael found a strange and unsettling small room with oddly shaped windows, a weird door, and mysterious drawings that hinted at a dark past. Michael's discovery of this strange room reveals the mystery of a young girl called Alia, whose spirit is connected to the house because of a terrible past. Michael, with the help of the Horseless Horsemen and the mysterious time walker, Clarion, embarks on a dangerous journey to free Alia’s spirit and those of other kids and bring justice to the killer behind all the evil.

I loved the suspense, horror, and strong human connection Ross C. Miller added to this book; it made the story feel both scary and touching. The eerie descriptions, especially of Michael’s dreams and the little room, were very creepy, making every creak and shadow feel real. The character development was excellent, and the supporting characters played a big part. One feature of the Horseless Horsemen series that I find impressive is how it never gets boring. I have read the first three books, and the fourth one is still unpredictable and full of surprises. I really enjoy Miller's writing style; it's unexpected, darkly funny, and exciting. I can't wait to see what the next volume will reveal. Rita's and Germaine's roles added warmth, and Lily’s return was a beautiful surprise that I didn't see coming. I recommend The Horseless Horsemen, Book 4: Alia to readers who like paranormal stories with suspense, mystery, and relatable characters.