John looked up from his book, a mildly blank expression on his face. He blinked at Sherlock and then marked his spot in his book. Over the years, he had brought back many books from the Overworld, on a variety of subjects. Stuffed bookshelves lined one wall in his room.

"Why did I do what Sherlock?" he asked.

Oh John knew. He knew why Sherlock was here. And he wanted to hear it plain from the man's lips.