Nine years ago a lad of fourteen, Felix Lemaire, assassinated a little boy whom he did not know.

He just wanted to see the child suffer, just wanted to hear him cry.

Felix slashed the little fellow's stomach with a knife, turned the blade round and round in the warm flesh, then slowly sawed his victim's head off.

Felix manifested no remorse, and in the ensuing investigation proved himself to be intelligent and atrocious.

Dr.Legrand Du Saule and other specialists kept him under vigilant surveillance for months, and could not discover the slightest pathological symptom.