isolatedphenomenon:

All three codes:

1)Ten symbols placed around a wheel
But break the chain and pay the cost
Hand in hand they’ll bond the seal
The prophecy will all be lost

2) Faded pictures bleached by sun
In memories the Pines still play
The tale’s told, the summer’s done
On a sunny summer’s day

3) Goodbye Gravity Falls (Codeword: axolotl)

Thank you Alex Hirsch.

I will miss this awesome show. Goodbye Gravity Falls.