The idea is the basis for book is very good. At first chapters we devour one after the other. The subject is brought, the protagonists are quite sympathetic, the plot is brought. Then we got tired, and the pace is slowing markedly: crossing comatiques walls one after the other without too many surprises, history loves multi rebound and in my opinion very unrealistic. One can even say that the last part of the book is really bad, when the continent of the dead becomes subject to the same pollution as we suffer here below. By cons, those who are worried can rest assured, the atmosphere is not at all creepy, exploration of death is described as the discovery of a new continent; one is in the pure "fantasy".
