narcissa malfoy was probably the most powerful occlumens in hogwarts history and nobody knew
she literally stood up to lord voldemort and lied that harry potter was dead and i don’t know about you but if i were an evil ruler i would probably want to triple-check that my nemesis was, you know, actually deceased
voldemort had actual doubts about snape
narcissa swans on by without a whisper, without a second glance
I’ve always felt that the number one sign of being an amazing occlumens is that nobody knows you’re an occlumens.