User blog comment:Gourgeist/Shingeki no Kyojin Chapter 64 Review: Welcome Party/@comment-189.199.61.170-20141214071834

I forgot, Grisha may have the answer to use the titan's power inside the basement, that's why he gave Eren the key to open it, looking forward to that too, although i'm pretty sure it's gonna take a while before we get to that part.