Disclaimer: Don't own Harry Potter. Should be kinda obvious by now.
Sirius looked everywhere. Behind his bed, under the rug in the common room, and even under a couple of skirts lying around the boys' dormitory. (What are those doing there?)
It was official. He needed to call in backup. Leaping on his best friend's bed, he shook him awake and said, "James! I've lost my marbles!"
"That you have, Padfoot. That you have," James agreed, sleepily.