In a series of books it is seems quite hard to write much up in a review without giving any of the story away. This Atlantis series of books certainly shows off the author's military experience and his knowledge of warfare.
The author continues to marry up past and present events, also bringing in historical figures into the story as main characters.
The series remains interesting enough to continue reading and for the most part remains fast paced and always enjoyable. It seems to me that the whole story, through the character of Dan, takes only a few short days, although the story is spread over many books.
What is also refreshing is that the 'good guys' don't get away unscathed - there is much damage that happens to the Earth (so far as I know).
Maybe this series would be better in an omnibus version??