anakin v obi wan

which novel explains this battle??and the volcano incident??

None.

Well there's a couple of lines from the first trilogy but it's pretty scant offerings.

There is a 'fan fiction' novella on www.episode-x.com that has this entire scene in it, but it's just one person's take on it.

Yep a few lines in the ROTJ novelisation. Someone here quoted them a while back but I can't remember.

I always thought they fought and Anakin was pushed or fell into a pit of lava. I've thought this since I was a kid and I'm sure I heard it/read it somewhere...could it have been the original novel by George Lucas? I haven't read that since the seventies.

On Wed, 22 May 2002 10:45:41 -0700, 'Dave Zero'

No, in general I think you're right. There was a paragraph or two about a lightsaber duel between Anakin and Obi-Wan, that supposedly ended with Anakin falling into a pit of molten metal or a reactor (not a volcano, I think it was industrial in nature) and Obi Wan trying to rescue him.

I don't know what book it was in though - and I always wanted to know more about that too. I suggest you check out that link I gave

The novel of ROTJ

Obi-Wan 'When I saw what had become of him (Anakin), I tried to dissuade him. To draw him back from the dark side. We fought...... your father fell into a molten pit. When your father clawed his way out of that fiery pool, the change had been burned into him forever- he was Darth Vader, without a trace of Anakin Skywalker. Irredeemably dark. Scarred. Kept alive only by machinery and his own black will'

Someone said it is the Ep III official book, that was actually written by Lucas