Anyone he knew? John took a moment to puzzle at the idea -- could there be others here, people he knew? Could Sherlock be here?

"I haven't seen anyone I know," he answered, shaking his head. As much as he might miss his friend, he'd rather he were safe in London than stuck here. But the question, once he'd thought it up, didn't want to go away. Could Sherlock be here? Should he be looking for him?

"But... Do people often show up in groups? With friends?"