http://www.mspaintadventures.com/?s=6&p=004245

It’s not an escape hatch.  It’s a server. (Which the Felt’s hatch acted as too).  If you go to the next page it clearly states “the clouds pointed you to the address of a server hidden" Rose’s walkthrough of Sburb was located on there.  This is the beginning of Rosemary.

~Mod T