This is just a theory, but what if Hanna actually became a doctor like she wished and owned a hospital? She could have created a substance that gives people superhuman strength or abilities working under Raphael. And what if, during the time Peter thought he was dying, Hanna came looking for him, injected him with the same serum thus making peter young again or Hanna sneakily adding it on Peter's medications without anyone finding out including Peter?
This is just a theory, but what if Hanna actually became a doctor like she wished and owned a hospital? She could have created a substance that gives people superhuman strength or abilities working under Raphael. And what if, during the time Peter thought he was dying, Hanna came looking for him, injected him with the same serum thus making peter young again or Hanna sneakily adding it on Peter's medications without anyone finding out including Peter?