Error 404 - Not Found

You stare at the window. It was here a moment ago, wasn't it? But somehow what you had been looking for has gone completely missing.

As your attention drifts again, it's still there in your mind, fragments of a melody and half-remembered words, playing back on a gentle but insistent loop.

You tap on the screen absent-mindedly, curious whether, this time, something familiar will reappear.