Everyone goes through the door
From Shousetsu Bang*Bang Wiki
Everyone goes through the door is a story written by Hyakunichisou 13. It ran in Issue 52 at http://s2b2.livejournal.com/294425.html, and is mirrored at http://www.shousetsubangbang.com/mirror/everyone-goes-through-the-door/.
This story is followed by:
The shadow in the classroom (http://www.shousetsubangbang.com/wiki/index.php?title=The_shadow_in_the_classroom; mirrored at http://www.shousetsubangbang.com/mirror/).
Summary
From fairyninjas.wordpress.com: "A relatively standard ghost-hunter-style story. Has it’s own nice little spin, and it was good."