This time, Matthias wants you to find a mysterious Glass Sphere with some tremendous powers, that you must give to Kalka the carpenter in Caravan Way. Well actually I don't know how to know who is to the owner, but this person is Cygnus the Pirate, and you can get it only if you talk with him while he's leading a raid in Altaruk.

You will need 5.000 CPs to buy it, wait a Pirate attack then hurry to Aristuff's house, where you will find Cygnus. Talk with him, say he will be a good mayor and so on, and he'll offer you to buy a Glass Sphere, that you might use in a mysterious island (this is the Pain Island, where you can also use the Glass Sphere). Well buy him a sphere or even several if you are rich, then you can kill him (2.750 XPs). You really need to hurry to Aristuff's home as Cygnus lives very shortly there (other adventurers will try to kill him to finish the Pirate attack and have skimmers back)... So try to be the first in the place! Fortunately, you can start dialog even if you are fighting with other pirates.

When you have the Sphere, go back to Caravan Way, give it to Kalka and get your reward in VA headquarters...

Note: I strongly recommend that you buy several Spheres at once, but starting dialog again and again. This Glass Sphere is a major item in the game, and it has several usages that you'll discover later. Just keep one sphere on, giving the extras to a friend when you meet Kalka, as he might greedily take all of them!