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The Secret Files: Tunguska Hints
Where can I find something to knock people out?
1 of 5: Did you look at all the information in the filing cabinets yet?
2 of 5: It's really useful, has some details on this Manuel Perez character, and a drug they used on him.
3 of 5: A drug called PCP, which knocked him unconscious.
4 of 5: There's a bottle of that stuff at the other side of the room with some other chemicals.