Alchemist

From TLJwiki

The Longest Journey

An Alchemist is the least powerful of all magic users, who wields it by creating potions. It requires no special talent or aptitude, and anyone with the proper education can be one.

Our only real Alchemical representative is Roper Klacks, although Klacks refers to an 'Alchemists' Academy'. April Ryan teaches herself some Alchemy using Klacks' laboratory, to release herself from his castle, save his petrified victims and free the trapped winds of the Northlands. She brews up several potions using bottles of alchemical essences: red (burning coals), green (cobwebs), yellow (butterflies), white (clouds) and a blue 'essence' that is actually a catalyst. The recipes for the potions are on a torn page in Klacks' labyrinth.

The only other reference to Alchemy is Klacks' mention of the term Anzhabecquakaleea, which he uses in a spelling contest against April and was absolutely not making up on the spot.

Dreamfall

In Dreamfall, alchemy seems to have been lowered to the level of basic chemistry, but it's still enough to bamboozle the Azadi. Klacks sells 'potions' ready-made from his market stall in the Magic Ghetto, though if Kian Alvane is passing, he quickly pretends to be selling 'maritime supplies', not magical ones.