User blog comment:San&Ashitaka/Chapter 52 Predictions/Expectations/@comment-189.174.17.53-20131205072357/@comment-179280-20131205073715

Maybe he knows about the coordinate (and maybe that's what the injection is all about). And that he knows about Titans, that's for sure, because he told Eren that he would know all the truth the day he reaches the basement. And only as a speculative scenario, what if in chapter 52 we finally see Grisha?