If you're below 15, AC is huge. In case of invoker, being dextrous race (some kind of elf?), wearing two citrine rings from Hamsah Seaport (they're sold by the jeweller) and wearing a rusted chainmail from Silverwood (worn by a encumbered goblin) will get you AC that most mobs in the ranking areas just won't hit through. That will let you survive till you get the parry skill.

P.S. With regard to identify, lore is as reliable when mastered.

P.P.S. Keep in mind invokers don't get fly, so make sure you stash them fly potions so you don't get tripped to death by the bloodthirsty us :)

See you in the fields, it's great to see a new face.