I'm a huge fan of Babylon 5, and enjoyed this book, but I would imagine if you don't count yourself amongst the fans of Bab5, then there isn't much for you in this book. It's an interesting story, and ironically enough, its seemingly pithy attempts at explaining the origins of various bits of the Psi Corps is less interesting than the story itself.

It follows several characters, in fact sometimes too many characters. Starting with the sudden appearance of telepaths on earth, a bit of the back-story of where they must have come from. This, more than any other part of the book, is where non Babylon 5 fans will feel left out. They take pains to point out the telepaths came from the Shadows, without ever mentioning the Shadows directly. From there, the MRA is founded, which eventually mutates into the Psi Corps.

That aside, the story of fugitives from the Psi Corps, and how they were founded was a good read, and there were enough hooks into the Babylon 5 universe to keep it very interesting to me. I also enjoyed the story/real-life tie in to The Demolished Man by Alfred Bester as an explanation for Bester's name. I'll have to pick up that book when I'm done with the trilogy and see how much of it is drawn from Bester's work.

All in all, it's a good book by itself, but I would have to guess that non Babylon 5 fans would have too much trouble following it to enjoy the basic story going on.