The Dink Network

Yep,well now I'm at level six and I've spoken with the mair who wants proof of the attack there's going to be.Where do I find these proof?I've bought the arrow and also learned the bow stuff...but I don't manage getting inside the gobblin...there's the guard I can't defeat...is there a trick or anything to defeat it?And,one last question...am I next to the end of the game?hope not