From 46 to 51 I did nothing but solo plaguebone thieves at the combine outpost in DL. Theres a hut with a little tiny pyramid out front. Inside there are 10 or so Static Plaguebone Thieve pops. I grabbed a KEI, sat outside.. used one of my DD vs undead spells to pull one (never got any adds) and would beat 'em up one at a time.. if things got hairy I'd spook undead it and beat it down while it ran away. Then just DW helm heal back to full health and start from scratch. the XP is NICE! even for aaxp I heard its decent. Only catch is.. its always camped, hehe. so its hard to get it.. but I managed :)
The skellies on average drop 3 PP and change plus bones and words and stuff you can sell.. so its decent loot and decent XP. hope that helps someone out here in lion land :)