The most annoying thing about The Prestige is the way it ends; though I can see that there was no real reason to continue it after that point. The story is told, all that can reasonably be revealed is revealed (without going into preposterous and unnecessary details).
The book is finished; the tale (which, as I’m sure you know, is about Victorian magicians, and Nikola Tesla) is told.
And yet I still thought, as I reached the last page, “Aw, I want more!” like a kid that wants another bedtime story.
Which is no bad thing, it’s fair to say. Better, as a writer (or almost anything else) to leave them wanting more than to outstay your welcome.
And with that thought in mind, I’ll just say: highly recommended. I’m out.