Is there any way to increase Edwin's IQ so that he may learn all the spells at each level? I've found several neat level 6 scrolls, but he is maxed out on his level 6 spells. I guess I could always forget some of the level 6 spells I never use...

You can drink either a potion of mind focusing or a potion of genious to temporarily add to his intelligence. This will make it possible for him to write more scrolls.

The only time it checks the mage's intelligence for maximum spells is when they actually scribe the spell, so if you use a potion to boost intelligence right before scribing. After the boost wears off, the spells remain in the spellbook with no ill effects. Thus, just go buy potions of genius and scribe away, and you'll have all of the spells, regardless of his normal intelligence.

Neat! Thanks!

Yes...

Spoiler
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In Watcher's keep if you use the machine of 'whasbob the mad' certain combinations can permanantly increase your stats. The combinations are revealed in the crazy notes you find lying around. But DON'T use any code more than once. Unless of course you want your characters to recieve 100hp(ish) damage.