User blog comment:Jerricks/Shrine/@comment-26833105-20170108060449

I had a theory using the cubes, proved FALSE but only tested once.

Cubes were obtainable from 25th Dec 2016, if we put 2 cubes and their numbers can be summed to 25, the door will open. This has been tested by ATGOYT (Aquexe) and nothing happened.

I do not know if there're any more combinations like, 5X5 or 25/1. I don't think this works though but this is my though.