Trojan Odyssey (A Dirk Pitt Adventure Book 17)

In his first adventure since the revelation that he€s a parent, Dirk Pitt must uncover the truth behind the myth of another long-lost father-figure, Homer€s Odysseus, if he€s going to stop a dangerous cult from reshaping the earth in their own image.
 
Fraternal twins, Summer Pitt and Dirk Pitt, Jr., are working to determine the origin of a strange brown tide infesting the ocean off the shore of Nicaragua when two startling things happen: Summer discovers an artifact, something strange and beautiful and ancient.  And the worst storm in years boils up out of the sky, heading straight for them and a nearby floating luxury resort hotel called Ocean Wanderer.
 
The peril for everybody concerned is incalculable. And now that Dirk Pitt has learned he€s a father, he will stop at nothing to protect his two children. He rushes into the chaos, only to find that what€s left in the storm€s wake makes the furies of nature pale in comparison. For there is an all-too-human evil at work in that part of the world, and Summer€s relic may be the only clue to the man calling the shots. Whoever he is, he€s connected to a cult that believes the Celts, also known as the Achaeans, reached the New World millennia before the accepted history suggests. If he€s right, his ancestors laid the foundation for the work he will soon complete€"and our world will be a very different place.

Though if Summer's discovery is to be believed, the world is already a very different place...