Board Thread:Speculation House/@comment-4830106-20131108040231/@comment-14909251-20140220002726

Sun probably just figured it out the way Penny did, noticing that the bow was kind of conspicuous. I imagine he did not follow Blake to Beacon but went there on his own for whatever reason. Maybe he figured she was a student there and went to see her, and that would not require him to follow Blake.