True adventure -- in the biography of Georgia's national hero, General Leo Keresselidze. (We are talking about Russia's Georgia, not ours.) Since annexation in the early 19th century, Georgia has been in a continuous state of revolt, and Keresselidze has played a dramatic part as revolutionary student, brigand, commander of troops against each successive foe. The Cossacks -- the White Russians -- the Red Russians -- enemies all. Failure -- capture -- escape -- another eruption -- the same story over again. Good adventure -- and those who read Grey Wolf know that Armstrong can spin a yarn, and that he knows the Near East.