you are a major in marine biology, recently your class was taken on a feild trip to a marine research facility renowned for their live mermaid in captivity.

The mermaid enclosure in question was completely empty. Explained away as the creature being shy, you lingered there a moment longer, as everyone else moved on. You did too...until the blue luminesce from the enclosure was eclipsed by a baronial shadow, the mermaid was definitely not shy.

"All on your lonesome aren't you ?"