Grrrrr.... Chrome ate my review. I'll try again
This book seemed to go on endlessly, but it was a "good read", so to speak, so I didn't much mind.
Basically, it's the story of a young man who was imprisoned unjustly and forgotten for 14 years. He made an escape and became fabulously wealthy. Then he plotted and wreaked his revenge for the next ten years.
Dumas, it seems (first book of his I ever read), is a good observer of the human condition. The book is filled with little observations and aphorisms which are as true today as they were in early 18th century France.
I found some things about the ending a bit creepy, but I think that's mostly a difference between my 21st century sensibilities and those of a writer in a society almost two centuries removed from my own.