He discovered the ancient city of Troy. He excavated Mycenae, finding, in the process, the famous Mask of Agamemnon. The archeologist in question was the peripatetic and prolific Heinrich Schliemann. But after years of believing wholeheartedly in the famous archeologist's writings and discoveries, scholars in the 1970s began questioning Schliemann's credibility. Now his work and life have become the subject of far-reaching investigations. The latest book on Schliemann is by UC Davis classics professor David Traill. His recent biography "Schliemann of Troy: Treasure and Deceit" (St. Martin's Press) examines the archeologist's life blow by blow through his diaries and written works, concluding that Schliemann's accounts of his personal life and his work are, in many instances, suspect. He suggests that the archeologist was a pathological liar. Traill argues that "the comforting formula that he told lies in his private life but not in his archaeology is no longer tenable.... We need to be skeptical at all times, but especially when it comes to the most dramatic finds." At the same time, Traill finds that "the greatness of his achievements and their enduring significance are beyond dispute."