It was in her final year of school at Durmstrang that she personally killed her first human – a young wizard who’d caught her talking with her demons. He’d injured Crocell with a surprise spell, and bravely vowed to tell the authorities everything. Forneus "took care" of the body after Hermione had killed him. Karkaroff was warned that the boy had "run away", and obediently disposed of the boy’s belongings and helped cover her tracks. He didn’t dare do otherwise, with the brand on his forearm a constant aching warning from his Lord to stay where he was and continue to advance the Dark’s agenda.