So... I got the tiles in the correct order (because now when I click on it, it says "You stand before the tiles again" and the only option is "Leave.")

 

However, having run around for several hours, and thinking there might be something else... I resorted to looking online and discovered... a watery bridge should appear to allow me to cross... but that hasn't happened.

 

Am I missing something?

 

Pretty sure I just figured it out... requires some... reading of things you might have...

 

Headed back there now...

Sure enough, that was it.

 

-sigh-