"Damnit." Sherlock cursed under his breath. He couldn't go after the man, he was still at work, he couldn't leave the museum. He could only hope that the Professor would come back soon.

But until then, he was going to do a bit of investigating himself, asking the team members who were working on the stone about it, to see if there was anything that he could pass along to the Professor. And of course, he would keep what the man knew a secret. at least for now.