But the most amazing part of what she accomplished is that her book was published in 1818. From a sci-fi perspective, she had a mad scientist harness electricity through lightning in order for Frankenstein to come alive. It wasn't until the late 1800's that Edison and Westinghouse invented the use of electricity through AC/DC currents. She's probably one of the most creative writers of all time who is little known. She died at the age of 53 from a brain tumor.