The creation of the creature is disturbing in itself as Frankenstein gathered the instruments of life around [him]  (Shelley, ch. 5). Though he doesn't go into much detail, it is insinuated that Frankenstein used dead human body parts to create the monster.

In reference to the novel, a central part of Shelley's thesis is that the monster's eventual life of violence and revenge is the purely a sociological product of his nurture (or lack of) and without doubt, this is scariest aspect of Frankenstein; the ability of a 'noble' yet prejudiced society to convert the monster ...