Sage's Humble Abode

I was walking to the new Sewers and came across these 2 little houses with a dock and a little pond.
Being me and all nosy, I went in and explored. There were quite a few carpets, so of course, I randomly dropped some emeralds and I heard a piston extend. I tried again, after a while I found out there was a hopper underneath this stair in the window of one of the houses. I kept trying until I found the location of piston which lead down to this grave.
There was nothing much to see, and I realised there were 2 carpets behind some tall grass. I dropped some emeralds (it's quite hard as there are fences in the way) and heard a click. The grave and a back bit opens up for a split second. I did it again and fell into this tiny "house". There were signs everywhere.

(can't send images cuz I don't have 10 posts yet)
Something to do with an Imp, a Potato Ship and an Ocean Storage. The sage has probably moved somewhere too...

There's also some boxes with item frames on it, a box with a Potato on it reads "Pristine Potatoes", and another one with an egg on it that reads "Easter Eggs".

How to get in?
Goto -312, 66, -1523. Stand on the dock, facing the enterance to the house. Goto the first left window and drop an item on the stair. Then run to the smaller house (with fish inside it) and there should be a piston retracted to go down a ladder. Go down it to the Sage's Grave and at the enterance to the grave, there should be 2 little "holes" with Tall Grass in them. Facing the grave, the right one should be the one you drop items in. Drop an item and then run and stand on his grave to fall down into the hole.

(my first thread so don't judge xD)

 

Pretty sure this is an old easteregg

 

Mhm, on one of the signs it says "I'll be moving to *REDACTED*", it also talks about other locations and such. Meh, could be. I did try and search anything to do with this and found nothing.

 

The potatoes might have something to do with the near and reworked potato shop?

 

There are signs that read:
"Note to self: Kill that nasty imp that keeps robbing my potato ships. I think he's hiding in my ocean storage."
"This house is too crampt! I think Ill move to *REDACTED*"

 

Wasn't it there before gavel?

 

The potato thing might be a reference to potato island, with a potato imp, and he can rarely drop a "rare potato", something i will NOT give up for science.

 

I have a rare potato, maybe this helps?