Dangerous Professions (гет)

Five years after graduating, Hermione is a curse-breaker for Gringotts. Although it's a dangerous profession, her new position as Professor of Arithmancy at Hogwarts may prove to be equally challenging when Tom Riddle finds interest in his new professor. Did she make a huge mistake in doing this favour for Professor Dumbledore? AU. professor/student. M for eventual smut. WIP.