Perfect Timing

When a new type of Time-Turner is created, the Department of Mysteries enlists Unspeakable Hermione Granger to attempt to pull someone who died in the war forward in time.
There's only one choice - her best friend's godfather. *****
Extending his hand, Sirius said, "Alright then. Let's see it. And, if you're from the future, I'm assuming you know me somehow?"
"I do," she replied, cautiously stepping forward and holding her wand out to him. "You're Sirius Black. Your bedroom at Grimmauld Place is filled with Gryffindor flags and cutouts of Muggle girls in skimpy swimwear..."