I shown the model of the secret pillar
Step 1: Model workings components
The materials used for the model buliding
Step 2: Making
And assembled those pillars shown in the picture.
On the top of the pillar we can Leave a hole and hide the hole .
In the real hose the same should be follow. The pillar is look like a pillar for everyone. But we only know that there is hole.
we can hide the hole by using tiles or Marbles on the top. It should look like ordinary floor only.