Well, that question got right to the heart of the issue, didn't it?
He ran a hand through his hair before shaking his head slightly. Reaching for the doorknob, he twisted it and shoved the door open, motioning for Remus to head inside. He remained in the doorway for just a brief moment, blowing out a sigh, before he stepped into Lily's room and pulled the door closed.
"It got bad back home, mate. When ... have you heard about the prophecy?" He asked, trying to get a handle on when exactly Remus was from. If his friend already knew that bit, he'd rather not explain it needlessly. He realized belatedly that Remus probably didn't know any of it, otherwise he would have some clue about what might have happened.