Doc Strange was briefly revived in the pages of Femforce as part of the Vault Heroes so that they could be revived should the world need them .
The Vault Heroes are a group of Golden Age superheroes who volunteered to have themselves cryogenically frozen following World War II .
Doc Strange was briefly revived in the pages of Femforce as part of the Vault Heroes , a group of Golden Age superheroes who volunteered to have themselves cryogenically frozen following World War II , so that they could be revived should the world need them .