Meta-Ween: Where’s Raven?

Once upon an image query, while I filtered, weak and weary, 

Over many lost and forgotten files and folders to explore  - 

While I nodded nearly sleeping, suddenly there came a beeping, 

Might it be a search completing, returning images for me to explore? 

“Tis a low battery warning”, I muttered, “only this and nothing more.” 

I fear my assets may be nevermore.