Dahlia (слэш)

1943. At the start of his fifth-year Tom Riddle found a book about the possibility of alternate timelines and time travelling and became obsessed with the idea of travelling to the future. Now, a year later, he's finally ready to carry out his plan.
1995. Harry is about to start his fifth year at Hogwarts. A year that will be difficult not only because Voldemort has returned, but because the Ministry will interfere at Hogwarts and because most of the wizarding world is against him. But Harry doesn't know that year the threat of Voldemort will be closer than he expected, that he will be more sane and dangerous and that he will try to convert him to his cause. And between the threat of Voldemort and the hate of the wizarding world, he'll find hard to resist his offer.
Will Harry be able to resist the temptation being offered to him or will he end up being changed?