I just thought I might make one tiny suggestion: what do you suppose happens when Forest Giants die a 'natural death' (har har)? Little has been said for their biological life, especially their customs to deal with any social things they might do or that surround more vital parts of their existence.
I have two suggestions about the deaths of FGs that might fit with one mystery or another:
1) The fire-lava thing in the FH level serves the purpose of none other than cremating the FGs that are ready to pass on. It may be that they worship the lava (as it comes from deep in the earth), and when their time comes, they 'give themselves to it', by ceremoniously walking into the flames, and returning to the earth that bore it.
2) If something like this is true, then maybe it is that same ceremony that incarnates a new tree, hence the rows of trees we see in FH. Reaching a little further, we might speculate that as each new tree is incarnated, a new FG is incarnated, and the tree and the FG may share some bond, which gives them a life-service to the forest.
Just a thought :P
doug
"I have a wife!...and kids!...MIIIILLLLIONS of kids!!!"
-anonymous villager begging to the ghasts at Willow Creek
