Who: Dawn (hopefully Buffy and/or Faith, maybe Murphy later?) What: Explosion aftermath - Dawn gets hurt.
Maybe Dawn was just trying to be incredibly forward, but she'd decided that once, this once, she'd be the one that went to visit Murphy for a change, instead of waiting for him to show up with a gown and plans for dinner again.
She grinned as she reached the second floor and made her way down the hall, only having the barest second for the tell-tale BOOM sound to reach her ears and she looked up as rubble fell, hitting her on the head before she could stop it magically or otherwise.