Well, when I did the same thing on the halls, I got those weird hands coming and taking me to the next floor or whatever. Can you just give me your save file or achivements? I tried for 2 hours to get this to work, and and even redid the Dark Halls. Nobody can give a concrete awnser and for some reason, the Devs aren't explaining it in detail either. Like, guys, we already know it's there; somebody on youtube put a video, though I turned it off because I didn't want to be spoiled. One of the videos had theme doing it from the Dark Halls, another had then doing it from the Normal Halls; You're saying to do it in the treasure room, the other video had them doing it from a very specific hall. What's worse is reloading in the hopes of getting the Drill AND being able to afford it AND getting the Seer to appear AND not dying AND apparently doing it at the right room.This cryptic crap is pissing me off. The rest of the game is excellent, but damn, some of these achievements are like, not good. At all.