The other tetra isn't saying anything, but is suspiciously pale.
The Mermaid Girl is upset. So am I, to tell the truth. RW is going to call the fish store when they open at 10 so we can try to at least figure out what happened.
Update: Still no sign of the missing fish, even after a thorough cleaning of the tank. RW even called the Tetra HelpLine, but they had no suggestions. The fish store says it must be in there, but it's looking more and more like the other fish ate it, however unlikely--and creepy--that seems.
On the plus side, MG seems totally over it and is just thrilled that she won a little bobblehead cat at school. I, on the other hand, am still shuddering at the thought of little fishie being eaten, skeleton and all, by the other little fishie. Blrgh.