The Laboratory is a side room in the Entrance Hall.
The Laboratory was used by Alexander for his studies. A note suggests that the baron was trying to artificially create Vitae. However his efforts were in vain since all he could create was a highly acidic solution, which reacts violently with organic tissue.
The solution in question must be prepared in order to corrode the Shadow's fleshy residue blocking the way to the Refinery.
The ingredients needed for the solution are:
- Aqua Regia
All the ingredients can be found in the Wine Cellar while the Chemistry Pot to contain them is in the Laboratory (on the desk where Alexander's note is found). To prepare the solution, the chemicals must be put in the burner. In the center of the room there is a grating, where a Kaernk can be heard splashing below. In the desk there's also one of Alexander's Memory Capsules.
During the time location of the game, the Laboratory is in a notable state of disrepair. Some walls have caved in, and when the player creates the acid solution, the Shadow will cause the main staircase to fall apart, forcing the player to use a wooden board in order to exit the Laboratory.
The Laboratory has two large areas. The first one is a large room. In this room there are a few shelves holding oil bottles, tinderboxes and crates. There seems to be a doorway in one part of the room, however, it is blocked by debris. The Shadow will roar if you approach the cave-in.
The second area is the actual laboratory. There is a small part of this room where crates and boxes are being held. There, the player can find some tinderboxes. In another part of the room there is some alchemy kit where the player makes the acid to later dissolve the organic matter.
In the center of the room there is, as mentioned before, a grating where a Kaernk is being held.
- Oddly, the only ingredient needed to burn away organic tissue, in this case the Shadow, would be Aqua Regia. Aqua Regia on its own is a mixture of nitric and hydrochloric acid already powerful enough to dissolve or purify Gold. There would be no reason to add things like Orpiment, Cuprite or even Calamine. Also, aqua regia is red or yellow in real life, but it's green in the game, probably due to a designer's oversight.
- Also, it is unlikely that it could possibly be stored on Daniel's chemical pot because it would burn right through it. It's possible, however, that the other ingredients render the mixture ineffective on non-organic tissue, or simply that the chemical pot is made out of titanium or some other metal capable of withstanding the corrosive effects of the aqua regia.
- Furthermore, if the organic tissue is muscular in nature and therefore composed of protein, a base would be much more effective at dissolving it for its ability to hydrolyse polypeptide bonds.
- In 1839, when the game was taking place, cuprite hadn't even been classified as such (this happened in 1845).