Why had Holmes taken the children? Why had he engineered that contorted journey from city to city? What power did Holmes possess that gave him such control? There was something about Holmes that Geyer just did not understand. Every crime had a motive. But the force that propelled Holmes seemed to exist outside the world of Geyer's experience. He kept coming back to the same conclusion: Holmes was enjoying himself. He had arranged the insurance fraud for the money, but the rest of it was for fun. Holmes was testing his power to bend the lives of people.
( Erik Larson )
[ The Devil in the White City: ]