Abrax is a Half-Crazy alchemist that hides in a secret lab under the monastery, he is one of the masters of the monastery and he gives you a quest of find his other novices. He wants you to find two novices at Tilda's farm, where Severin is in command, and bring back som plants. Abrax also sells you some of his potions if needed. You can learn alchemy from Abrax, and he doesn't seem to notice if you plunder his Lab.