Graham's writing is filled to bursting with non-stop action, which takes you into an exciting adventure that is difficult to pull away from. The fifth ring is definitely a very good book but unfortunately it disappoints in some aspects.
I couldn't help relating this book to a Hardy Boys adventure (remember those?) set in a fantasy world. The plot was predictable, basically the same old story, young stable/farm/kitchen/baker boy acquires great power and is hunted across half the world by an extremely evil king or lord. Then throw in a "decides the fate of the world" war between nations and you've got your standard fantasy novel. So don't expect too many surprises. The character development also leaves a lot to be desired as Graham concentrates on only 3 or 4 people, leaving most of the others as one-dimensional puppets.
It would be unfair not to mention that I enjoyed this book and got through it in no time. The writing style is excellent so the story always flows along, sometimes at break neck pace and you might even end up holding your breath. The action scenes are top class and take full advantage of the author's experience in fencing. There is also a good amount of humor which makes it a pleasant read.
I do think that 3 stars is probably a bit harsh, but even though this book was entertaining it doesn't quite make it on par with 4 star books such as the sword of shadow series by J.V Jones. And it doesn't come near 5 star books by Martin, Erikson and Hobb. I believe 3.5 stars is fair.