Stephen's sister Donna was born 2 years after him. Donna had a good life with friend and family. But one day donna just fainted but was also dying Stephen took her to many doctors but none were able to help with the problem she had because if the operation was sucsesfull she will die soon later. Stephen told her they will wait 2 years then he will be a certified doctor and he will be her doctor. After 2 years she was a young adult. The 21 year old Stephen Strange did the operation and he sadly found out that the operation was a falier. Stephen thought he failed no matter what because Donna was dead Stephen never forgave himself after that. Donna Strange lived a good life but she deceased very young.