at age eighteen what does Victor say is his passion and what is the eventual result of it?

Victor is also preoccupied with the question of how one might communicate with ­ or even raise ­ the dead. He finds no answer in the works of his Roman idols, and becomes entirely disillusioned with them when he witnesses a lightning storm. Since the Romans have no satisfactory explanation for this phenomenon, Victor renounces them entirely and devotes himself (at least for the time being) to the study of mathematics. Destiny, however, will return him to the problems of natural philosophy. The eventual result is the creation of the creature.