Their research told them that the mysterious vampire bat might hold the cure to his ailments. With samples in hand, Michael donned a specially designed suit that would help him survive the process. The pair of scientists had no idea that applying electricity would change Morbius on a molecular level...ending his human life and turning him into a Living Vampire.
Overcome by bloodlust, Morbius lashed out at his lifelong friend, killing him in the process. Not wanting Martine to suffer he same fate, Michael threw himself into the ocean before a group of seamen eventually fished him out. Once again unable to control his hunger, Michael fed on the crew. When they became aware of the menace, they moved to attack, but Morbius had abandoned ship.
By chance, the boat happened to be near New York City. Morbius made his way to shore and found a house to hide out in to avoid the hard sunlight. That dwelling, owned by Dr. Curt Connors, also happened to hold none other than the hero Spider-Man who had four extra arms to deal with at the time. Michael, needing to feed, decided to make the eight-limbed young man his next meal. At that point, as seen in AMAZING SPIDER-MAN (1963) #101-102, the owner of the house came in, transformed into the Lizard and stopped the feast.