I see. Just finished one game now and had 22 spies at the end. Interesting game though, with a warmonger dominating the game. At the end Montezuma had a score of 3600 points while I had "only" 1800 score. Yet I won the game via science victory. He had whopping 47 cities, me only 8 cities. That was enough to win comfortably without major challenge. In fact Montezuma and the other two heavy warmongers in the game (Shaka and Askia) made me a good service because they eliminated alone some tough science CIVs and made my life easier by doing so.