Actually, a skill point in alchemy is handy to make
restoration potions (once you get your hit points and mana up a bit they become more effective than separate health and mana potions). Very early in the game you'll probably be using food and sleeping (where possible) to conserve potions, though.
There is a gate south of the entrance to the catacombs; you should see a path leading to it, and continuing on the opposite side. The orcs outside are vulnerable to poison, if you have any potions and learn the Poison Weapon skill, etc.
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