Καλκσταιν's place is in "Little Mahakam", right next door to Vivaldi. There is a shingle hanging outside his door.
Signboard
Καλκσταιν, Master of Alchemy |
Later, once the advertised service has been rendered, the plaque merely reads, "Καλκσταιν, Master of Alchemy".
The interior is quite spartan. On the main floor are his living quarters, complete with several containers full of good stuff, and a nicely potted wolf's aloe. The basement, however, is where the real action is. There you will find his laboratory, not to mention a couple of chests, a wardrobe and, in Chapter III, a teleporter.
Καλκσταιν is also quite hospitable, allowing Γκέραλτ to stop and meditate there any time he is in residence.