Who dunnit?

Papers lay strewn all around as Miya looked in disbelief. 

This wasn't how the house looked when she had left.

'Great! A theft!' sighing she suddenly noticed something move. 

She wasn't alone, the culprit was still there.

And it was a mouse!


This is my response to the weekly Gargleblaster challenge, which is to answer the following question in exactly 42 words:  Who dunnit?