Atlantis Found is a 1999 novel by Clive Cussler, the fifteenth book in the Dirk Pitt series. Plot summary In 7120 BC, a comet hit North America, abruptly ending several advanced civilizations. In AD 1858, a whaling vessel discovers a 1770s merchant ship frozen in Antarctic ice; included on this ship is a polished obsidian skull. In the present, a group of U.S. scientists discover a mysterious underground chamber in Colorado, including a polished obsidian skull. They are attacked and left to drown, but U.S. National Underwater and Marine Agency (NUMA) Special Projects Director Dirk Pitt saves them. Another chamber, like the one the scientists found, is discovered on a remote island and Al and Rudi Gunn head there. They make a significant find and are attacked by the same group as the scientists. Meanwhile, Pitt is aboard an icebreaker in Antarctica searching for the 1770s merchant ship and the other skull. He finds the ship and narrowly escapes disaster. A German U-boat, missing since 1945, is destroyed. Pitt dives on it and recovers the body of a female officer. Both skulls found are given to NUMA for study and analysis and a theory about the possibility of them being Atlantean in origin develops. The skulls are examined. Inscription symbols are found and they work on finding translations. Inside, geometrically exact globes are found; however, the continents and coastlines are different from current globes. Pitt returns to Washington, DC, and interrupts someone – a twin to the U-boat officer – stealing the latest report from the NUMA director's office. She is captured and blood tests show they are enhanced as well as genetically identical – cousins, not sisters. The women are members of the Wolf family, descendants of Nazi escapees. They run Destiny Enterprises, a corporation based in Argentina that is rumored to include Fourth Empire Holdings from Nazi Germany. The chambers turn out to be the work of a civilization calling themselves the Amenes (pronounced Ah-meen-eez), a nation of seafarers and wise men who discovered and traded with most of the world. The comet from the beginning of the book caused a worldwide disaster that wiped out most of their civilization. It also had a twin, which returned to space. The few Amenes that survived built the chambers to pass on information of the twin comets return and the catastrophe. This information is given to an observatory to be