"Yes, so the person she killed was herself."
The moment he heard the answer, a roar echoed in Sirius's ears. The world blurred, leaving only Lois's voice ringing so clearly, like a blade tearing through his barely scabbed-over heart, leaving it bleeding all over again.
"She saw the prophecy, and she saw Regulus's decision. She went ahead in time to save them, and upon returning, she split her soul without a moment's rest. Then she searched for Regulus, destroyed the Horcruxes, and left behind clues. Only because her magic was exhausted was she trapped there. Given time, she could have slowly repaired Lily and James's souls, and slowly recovered her own magic—at most, she would have fallen into a deep sleep. But when she decided to protect Regulus..."
Chapter 115