Collect 2 more magnesite stones and bring them back to Ferid. When you go back to see Ferid Redismos and give him the Magnesite you got, he'll advise you that the Society doesn't like strangers in their Teleport Network and he's been forbidden to make any more stones for you in the future. However, because he's a righteous man he'll honor the agreement he made with you before the Society's ruling, and make you 2 more Teleport Stones.