He becomes intensely interested in harnessing the power of life and death to create a new Adam, made in his own image, instead of God's.

The Monster (Frankenstein)
The monster is the terrible outcome of Victor's ostentatious ambitions, the reckless creation of science that has overreached its boundaries, the unleashing of that which science has no concept of and no powers to contain.

He is hideous and terrifying in his physical power. Victor immediately rejects him, and within hours of his birth, horrified townspeople drive him into the forest with screams and blows.