"Observing witch you are." He smirked and waited. She sighed and glanced around for anyone, seeing a group of students nearby she slowly leaned forward on her tip toes. Her lips were near his ear, not too close but enough for him to feel her breath on his neck.  "Tenebris et lux." Hermione whispered in his ear and pulled back. Ever since the beginning of the year she was  worried that someone could overhear her saying the password and it freaked her out.