Great news!
I have finally "solved" the first puzzle of Tunnelgang. I'm saying "solved" because quite frankly I cannot tell the solution of it. I used brute force technique to find the solution. I'm wondering where the solution lies with the clues I have in hand? I know about the ... but it doesn't help me much up to now.
I do wonder like janaba how Dulcamara finds time to work on her ages like that. I'm quite sure she does that to change her mind from Alabaster. Sometime when I'm working on a huge project, I often take a break of it by doing something else. It might be her way to decompress. And we can be thankful of her for that because she is improving her ages. Elodea's Upperworld is becoming more and more attractive & Tunnelgang is now more complex than ever before!
On one hand, I used to like Tunnelgang very much because it was (and still is) a "physical age" just like Gahreesen is (you have to move a lot and do jumps, climbs, etc.) On the other hand, I always felt it was too short. I was able to do the complete tour of Tunnelgang in 10 minutes chrono! Now with the new improvements, it's becoming more up-to-par with its sister ages (Upperworld, Schatzkammern, & Unterwelt). It didn't grow much (story-wise & geography-wise it would be hard to expand it...) but it is more filled with novelties: puzzles, locations, more objects, corrections of collision with vases (that didn't have any before), & a nifty mouse!
As always, I'm wondering if there will be such a thing as a deception coming from Dulcamara's work...