This book takes us through the escapades of a couchettiste which, at first glance, an insipid life .It will live through a journey "like no other" no ordinary adventure .The book is written in a clear style clear .It is easy and fast to read (a bit too much ...). The story seems simplistic but this book manages to combine humor and suspense, in short, which is often lacking in the novels .It would give us almost want to change jobs!