In a flash, Sherlock was in Sydney, but millions of people lived here. How was he supposed to find John? It was like trying to find a tiny broken sliver of a needle in a stack of haystacks.

He closed his eyes and tried to sense John, but he couldn't. Had Demeter been right, was something really wrong with his Persephone?

Sherlock had to know.. but where to start... Where would John be?

He could be anywhere.