THE SIBYL (154 pp.)Pär Lagerkvist Random House ($3).
Ahasuerus is the usual name ascribed to the man who denied Christ a moment's rest on his way to Calvary. According to medieval legend (but not Christian doctrine), Ahasuerus thereupon was deniedunder Christ's curseeither death or mercy, and was condemned to walk the face of the earth forever. The man cursed with the burden of perpetual life on earth has haunted enough imaginations to produce scores of folk tales, dramas and novels. He now reappears in Pär Lagerkvist's latest book. Those who know the other works...