A/N: For hp100, prompt 'Missing.' Slightly silly.

Disclaimer: I own nothing.

Hermione grinned in triumph. "This is easy, guys! We just have to find the missing number in the sequence and we'll be through!"

Harry and Ron looked at her, dumbfounded. "Ok, I have to find the missing number. Give me a minute."

She looked the numbers over again. She mumbled to herself and held up fingers to count. Harry looked at Ron. Ron looked at Harry. They both shrugged simultaneously.

Finally, Hermione yelled out, "Two hundred!" and the door opened.

There, on the other side, was the largest stash of candy any of them had ever seen in their lives.

A/N: Please review!