
If you look closely above the writing there are those two Olms from the episode, "Quarrelers Pass". I also noticed in the current new episode, "Temple Frogs", that the message on the it says, "Seek the mother of Olms, she will guide you to your destiny." and in the episode, "Quarrelers Pass", the Olm named, Lysil said, "Mother always liked me best!". Could this mean they are talking about their mother? Or the mother of all Olms, like a queen? If it is the mother of Lysil and Angwin and if Sprig and Polly did kill them, they might have a problem getting help from the mother, since she would be very angry because of them killing her children and plus even if it is the mother of all Omls, I am pretty positive she would be just as angry as if it were her children and Olms look sorta like Axolotls, so maybe... this could be a connection with Gravity Falls. If you don't know what I mean, let me explain; In the last episode of Gravity Falls" Bill, the main antagonist, said these words, "A-X-O-L-T-L!" Could this also mean something, or does it just mean Disney is obsessed with Amphibians? lol
Any who, this is just a theory of mine. So, this could all just mean nothing.