Board Thread:Questions and Answers/@comment-138.130.106.201-20140801110937/@comment-3250527-20150115205449

That window exists, but the Divine Stone of Returning Soul cannot apply here because Klein had most likely used it before the events of Volume 1 (Episode 8 and following).

And, in a real sense, don't you think that the time frame between Asuna's death and Kirito's and Heathcliff's stalemate was a lot longer than 10 seconds (in a realistic sense)?