I'd like to point out that The Matrix was originally published in 1994 and it's true to say some of the themes now seem somewhat old fashioned and the dialogue's dated. Try and stay with it. Although not a modern horror, by any means, I found this pacy, intelligently written supernatural mystery thoroughly enjoyable though not remotely scary.
Aycliffe writes in a style that's more about mystery and intrigue, building an atmosphere, than it is about making you leap off the edge of your seat and he does it well. His intelligent plotting and character development make him quite unique in this genre and set him apart from contemporary horror writers who rely much more on the shock factor.
The core of The Matrix features the character of Andrew Macleod, recently widowed, a man reeling from the effects of grief and unable to come to terms with the loss of his wife. In the midst of his sorrow Andrew begins to look for answers, and hope, in the field of black magic where he becomes embroiled in the life of the deviant Duncan Mylne a master of the arcane and generally 'nasty'. As the plot moves along it becomes more and more obvious how dangerous Mylne is becoming but; the only person who can't see it is Andrew who buries his head in the sand and refuses to listen to the warnings. Events continue to build through a series of eerie supernatural scenes until people begin the die, ghostly entities arrive and we are introduced to the Matrix and possibly the secret of eternal life.
Good storytelling, well crafted, enjoyable tale of betrayal and the supernatural.