There is an abandoned tower decaying in the middle of the swamp which seems to hold many secrets. It is of particular fascination to Kalkstein, who is willing to pay anyone 1000 to get inside it. But getting inside is not an easy feat, one must gather ten sephirot and place each of the ten in its corresponding monolith in the swamp.
This quest is not fully complete until Chapter III, when Geralt goes back to speak with Kalkstein.
Possible outcome of quest: Despite the reward of 1000 , the player gets a profit of either 500 or nothing whatsoever! The player must spend 500 to get one of the sephirot and spend another 500 (optionally) to have a storm summoned by the druid. Counting other costs related to quest, there is even a net financial loss due to the quest.
If you have already collected a few sephirot, feel free to drop them off at the appropriate obelisk, while exploring the swamp. Saves you some running around later, plus the activated energy beams make orientation a bit easier.
I promised Kalkstein that I would get more information about the mage's tower in the swamp. Two books are of particular importance: "Ain Soph Aur" and "The Secret Gates". Very old publications as they are, they might be difficult to find. The dwarf had "The Secret Gates" and I'll have to look for the other one among some old people interested in history. I have to find two books for Kalkstein.
Note: 500 XP can be had by talking to the locals about the tower.
The dwarven antiquarian hinted at where I might find the books I need. Golan Vivaldi owns "The Secret Gates" and he might also have a copy of "Ain Soph Aur". I should see Vivaldi about the books I need.
I witnessed the arrest of Golan Vivaldi. It is too bad — I hoped he would help me find one of the books for Kalkstein — after all, he is a dwarf. Perhaps I should come up with a way of breaking him out of prison. Perhaps I should devise a plan of breaking the dwarf from prison.
I managed to release Vivaldi from prison. Now I can visit him and ask about the book for Kalkstein. Now I can visit Vivaldi at his house and ask about the book for Kalkstein.
If Geralt sold the weapons: <there is no actual phase entry in this case, Geralt can simply find Vivaldi at his home if he chooses>
I got acquainted with the history of the tower in the swamp. That knowledge, combined with information taken from "Ain Soph Aur", should satisfy Kalkstein. I collected more information for Kalkstein.
I read the Sephirot history. This information, supplemented with "The Secret Gates" should satisfy Kalkstein's expectations. I collected more information for Kalkstein.
I presented Kalkstein with the results of my quest and got one Sephirah. Now, following the clues from the books I need to find the nine remaining Sephirot and place them on the right obelisks in the swamp. I need to find the nine remaining Sephirot and place them on the corresponding obelisks in the swamp.
Note: Not all of these phases will appear. Which ones do is dependent on when Geralt receives the "three sephirot drop" from the statue of Melitele. You will only "see" six of these, do not worry about it:
I placed all the Sephirot on the obelisks and the tower is open. I need to inform Kalkstein and collect my reward. I can now enter the tower. (10 × 100 XP)
I did what Kalkstein asked, placing all the Sephirot on the obelisks and opening the tower. Kalkstein paid me my reward as agreed. I completed that task. The mage's tower is open. (1000 + 2000 XP)