Wow! Thanks for all the great input. There are some suggestions here that I will remember for next time. When I realized how the encounter was going to shape up, I could have had them make a Survival check to realize that the fire, even low embers, could be seen at a significant distance. It was the campfire that got them ambushed. No campfire, and the tracking ogres would have blundered closely enough for the sentries to have easily heard and alerted the others in time to not be caught unawares (remembering that there's a -1 per 10 feet on Listen checks, the PCs on guard duty had -11 to their initial Listen checks to hear the ogres approaching as quietly as they could).
To flesh things out a bit, the ogres weren't expending many resources plundering the tombs, which were free of threats for the most part. They lost an ogre to ghosts on the first day, and since then they've simply avoided that particular tomb (the largest). Thus, the leader had his full spell capacity. In contrast, the party wizard was tapped on his 3rd-level damage spells, except for one
fireball which he nailed the leader with at the opening of hostilities. Then he missed the ogre leader (touch AC 10) with
scorching ray - twice. Had those spells landed, combined with the
heat metal and
produce flame spells the 4th-level druid had nailed the leader with, the fight may have had a different outcome. There was also the fact that the dwarven fighter/ranger was fully dressed in plate armor, ready to kill his favored enemy with his
+1 flametouched iron dwarven waraxe, but unable to free himself from the entangled area for the entire fight. Likewise, the bard/fighter/unfettered had no luck getting free at all. The paladin, though eventually able to free himself, was unarmored and 3rd-level, and became ogre fodder quickly on his own. The rogue and faen (spryte) druid could have both fled to fight another day, and indeed were on the verge. But they didn't. They stayed long past the point when the others were doomed, and so they died too.
Amusingly, the new party has two clerics and a favored soul. The old party had none.
