The highest level monsters you can fight as a non-member are the lesser demons (level 82) which are found underneath the volcano on Musa Point on Karamja Island. You have to climb to the top of the volcano to find the trapdoor that leads to the dungeon where the demons are located. Have a look around till you spot them.
You do have to pay to get to the island, but not a lot (30 gold pieces). You can get the ship from Port Sarim, west of Lumbridge.
Fight monsters near the volcano. Level 60+ is recommended.
You need to follow "exactly" what is said for you to do, otherwise you'll have trouble.
No.
yes, it is.
www.runescape.com
in the wilderness east of clan wars , but it's only for members so it's no use going there without being a member
Treasure Trails - Rune Scape Guides can be found at webpages like Rune Scape, Rune HQ, and Rune Scape Services and all explain how an individual can carry a clue scroll in the game.
The price constantly changes.
Rune Wiki, its different each time.
Buy them.
Possibly
NO