RiddleQuest-the first of many.

Onward!  Alas, a plague of riddles is upon us!  I am Sir Saladin, the only knight in the kingdom who has not quested to vanquish this plague.  Maybe, with the help of you, we can conquer it and free the trapped knights!  There will be a rich prize for the one who completes all the riddles!  If you do not want to go along on this perilous journey, then turn back!  If not, onward!

Here comes the first riddle!  Quick, get out your thinking cap!

A window to nothing,

A door to emptiness,

A person not really there -

But I'm round and square.

What am I?

I think we are safe for now…whew!  I know an sage who lives just yonder.  She will know the answer to all the riddles.  We should check with her, so we are sure that that beast won't come back.