And after a round or so of testing, Wendy's clever stratagem had paid off.  They had now quickly and easily identified which spheres could be passed through, and which could not.  And, once again sitting by the pink sphere, she tried to decide which entrance to check out.  Green had hit something almost immediately...  But that could mean it was blocked, or something.  She wound up looking directly across from herself after a few seconds.  Bright blue...?<br/><br/>Eh, good enough.  Floating directly over to the bright blue sphere, she investigated what lay beyond.