Dirk Pitt discovers Atlantis, in a breathtaking novel from the grand master of adventure fiction. Clive Cussler has long since proven himself one of America's most popular authors--a master of intricate, audacious plotting and "vibrant, rollicking narrative" (Chicago Tribune). But Atlantis Found may be his most audacious novel of all. September l858: An Antarctic whaler stumbles upon an aged wreck, its grisly frozen crew guarding crates of odd antiquities--and a skull carved from black obsidian.…