He had a lot of nerve to experiment on those creatures without her knowing, you might say but this became the stuff of what thrilled readers even though it was totally crazy thing to do. Fantasy meant that the author could devise any devilish plan and get away with it. Fantasy still revolves around the similar ideas even though I think that audiences have matured in their tastes.
The daughter went with her dad to a secluded island where he wanted to perfect his specimen and there she encountered the assistant who had his own design of gaining access to the doctor's fortune. He wanted to marry the girl and gain wealth on the hope that the doctor would get mortally injured during one his encounters with the creatures he created. The assistant saved the girl from the hands of one of the beasts to offer her an alternative plan of being safe. He wanted to marry her but she suspected that he was only looking after his own interests.
It looks like the ending might be filled with a bunch of monster escapes, which will capture the girl again and kill the assistant or the doctor in the process. Or perhaps just one of the creatures will kidnap the daughter again. Maybe this thrilled audiences years ago. Today one wonders how a girl would have survived in a home of a maniac and had never discovered what his demented interests were. I mean she had enough sense to know when someone was being deceitful, so what kept from getting to the root of her father's deceit?
If I knew the answer, this would not have been the horror/thriller it is.
