Quite simple really.
Items reccomended-Food, prayer pots, rune skimmy.
Skills-37 prayer is a MUST!
You begin this quest in the gnome stronghold, but you may ask...G w a r HOW THE HELL DO I GET THERE?! Well excuese me, i was just explaining that. Anyways. : P You go to the home teleport, and you go out the gate there.. You'll see houses, one containing a wizard, and one containing pirate jackie the fruit. Then talk to Jackie. Then you'll be teled to the agility area. Then head north to a giant fricken tree, you can't miss it. Talk to the midget inside with the fancy hat on. He'll talk about a giant jungle demon grr takeing over the stronghold lawl. Regardless...
Tele your quest guide reading buttox over to apetoll. There you will be jailed, pick lock the jail till you can finally exit. Then you head past the Stalls all the way over by the outskirts of town, you'll see a gnome in a building.. Talk to him. He'll tell you to go through a trap door to the south. So go to the building with a trapdoor right out in the wide open. Go down you'll find yourself in a maze type thing. Not complex, very easy. Just run through it. You'll find Zanook at the end, talk to him he'll give you a greegree. Tele out of the maze back to apetoll.
Once out of jail again, equipt your GreeGree, then head past the temple with the gaint monkey gaurds, untill you come upon an abandoned shack where you'll see the elder gorilla talk to him and you'll obtain the Sygil. DO NOT EQUIPT if your're not prepared for a hell of a fight. Once you are..
Turn prot from mage on, and equpit your sygil and fight away!
If you succseed in killing the gaint green demon you'll have the ability to weild the legandary dragon skimmy which can be obtained by killing moss gaints at the monster isle. There ya go. Thats my walk through, see ya in the game!
Your friend-Gwar