"Colloportus!" Talons said. She looked expectantly at her miniature door. Nothing happened, so she tried again. "Colloportus!" she said a little louder. concentration and confidence, concentration and confidence.. she chanted in her head. "Colloportus!" she said again, practically yelling this time. Why couldn't she do it now, when she had been so good at it earlier? Maybe i accidentally did something to it, she thought. She put her hand in the air. "Professor, there's something wrong with my door," she said.