Air

There's already multiple ending according to your actions.

Anyways, should there be a bow type weapon? It could be like batons, except less damage but no ammo required.

I'm not completely sure, as I've only got the demo, but doesn't Sharon craft you the Infiltrator's Ring? (Purified Essence, Rogue Drayk Tendon, and Perfect Crystal)

In the Geneforges, it kinda works. If you're in an hazardous area (drains your life) then you can enter combat mode to travel further for less damage. Also, in that ghost swamp (G2) after every battle I run back to town and refresh my essence ^^.

Edit: Typo

Do you think there should be an E4?

Erika cannot be a two bit mage because, according to Encyclopedia Emarian, she was possibly the only person ever to create quickfire. In A3, in her tower, there is a quickfire trap guarding some drakeskin gloves which pretty much proves it.

Did you get the one near the worm tunnels?

How do you make a link in UBB code?

In A3 Linda summoned a powerful demon that(I think)got out of control and made more demons on day 160 in the Tower of Magi.

I can't find the other scrap of vellum! Where is it?

You can find a stunning blade in the demo on a body guarded by many turrets. Oliver in Formello sells a yew longbow which is better than a yew bow.

There is a stone circle near the surface-Upper Avernum passage. It SEEMS that the only way to get there is to fly, but there is actually a secret passage from the back.

I don't know if anyone has discovered it yet, so if you have, ignore this.

It'd be nice if the game showed experience gained after battle. For example:

You all gain x experience.

Aldous gains x experience.

Aldous, Ssschah gains x experience.

Just a thought.