Denning rose abruptly. He could feel

the hot blood rushing into his cheeks. He opened the windows wide. Angers raging anger, wasn't the way to deal with kidnappers and torturers. Cold determined purpose; calculations as in a chess game. That was the way. And how did you calculate, forestall each move of the enemy and win? By making your own thought follow the patterns in which your opponent's mind worked. That was the lesson to learn, that was the way to checkmate.