Death Eaters
Rosalind received a sharp piece of metal on her wand arm shoulder, digging in her skin. She did not go to the Lestrange Manor but rather Apparated to her home where she quickly took the shard out and Healed herself, then changed into her Auror robes and headed back to Hogsmeade immediately. She arrived there at the same time as most Aurors, avoiding any suspicion.