If you don't talk to the guy near the teleporter after using the book, he doesn't get upset.
The only thing in Rivertown Gorge is Kali's flying fortress.
Have you maxed Bleed and Duel Wield Expertise (as much as you can for your level)?
If you use Whirlwind a lot, the cooldown time drops at higher levels.
Have you tried Battle Rage? I didn't use it in D2:ED, but with my ranger in DKS I found Way of the Ranger helps, after I bought a bow with that skill bonus (at level 40).
