Geometry Dash World - Third Secret Vault! - Chamber of Time HD

So this is how I found it. I was playing with a modded version of GDW and I beat the challenge. I wanted to get the reward when this happened. Link to Modded GDW: http://www.mediafire.com/file/hh5ted8l73vvrv6/Geometry+Dash+2.1.apk This is so cool