Eh eh, I guess that by that time we all knew what it was :D But yeah, I believe that's exactly that kind of fishy :)
Incidentally, there is an actual fish in the previous Ines game.
You mean in "Uncle Lee strikes again"? Or the FIRST one, "Once upon a Möbius strip"?
"Once upon a Möbius strip" (which is actually the second one, but it's a prequel)