Which quest gives you the Frogzard Sword in the Frogzard Adventure of Adventure Quest?

I'm not sure, all I know is that it's not the first one. Sorry I can't help more.

The sWord is obtained after defeating the MotherZard in the second Frogzard Quest with the Frogzard Hunter. The sWord is only temporary and will disappear after you log out. If you finish the third Frogzard Quest, you will also receive Frogzard Hunter armour identical to that of the Frogzard Hunter.