Whatever you do, don't die in the past

x Draco / Hermione pairing x Draco and Hermione get transported to the past, in the place of Rose and Jack on the titanic. They have to change history, making the both of them survive, but if they die in the past... they die in their present time too. How will they manage? And could they ever become friends, maybe even more? - Rated M for language, and future sexual parts (REVIEW)