ODESSA, RUSSIA, 1918 THE DENSE FOG rolled into the harbor late in the afternoon, nudged by a sudden change in wind direction. The damp gray billows washed over the stone quays, swirled up the Odessa Steps and brought an early nightfall to the busy Black Sea port. Passenger ferries and freighters canceled their runs, idling dozens of sailors. As Captain Anatoly Tovrov groped his way through the bone-chilling mists that enveloped the waterfront, he could hear bursts of drunken laughter from the crowded dives and brothels. He walked past the main concentration of bars, turned down an alley and opened an unmarked door. War