Yup, all completed before level 10.

Access to Lair of Snakes at level 8 is right on the money. So are the quests.

Access to the Graveyard Ruins at level 25 is wrong wrong wrong. Too soon!
With the best armor and weapon available to you at 25, entering the Graveyard Ruins
is a death sentence. you may survive 1 hit from a Skeleton Marauder , barely, but not 2.
I forget the next higher skeletal, it does kill 1 hit and probably overkill on a lv 25 player.