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Lost Files of Sherlock Holmes: Case of the Rose Tattoo Hints
How do I analyse the real formula?
1 of 10: Examine the formula at the lab table.
2 of 10: Holmes will place the "document" on the corner of the lab table.
3 of 10: Taste and smell the document.
4 of 10: Then analyse the document.
5 of 10: Cut a corner from the formula with the scissors.
6 of 10: Add distilled water and ferrous sulfate to the beaker.
7 of 10: Add the piece you cut from the formula.
8 of 10: The "right nitrate" will turn the mixture blue.
9 of 10: Use iron nitrate on the beaker.
10 of 10: The formula will return to your inventory afterwards.