Out of all the other MYST books, I always thought that this one was a best one... But it is unlike the other two in subject matter and basic concepts. At it's heart is a "what price will you pay for perfection? and would you throw it away if you had to?" sort of story that might be a little heavy handed... But if you enjoy the videogames a lot (and this was before Riven) then you'll love this one. Locations and things described in this book have stuck with me for the last six years.