Lost Files of Sherlock Holmes: Case of the Rose Tattoo Hints

How do I analyse the parchment?

  • 1 of 6: Listen carefully to the conversation when you first sit down at the lab table.
  • 2 of 6: Look at all of the chemicals.
  • 3 of 6: Find which ones have "vapour" in their description.
  • 4 of 6: Pour iodine into the beaker and add water.
  • 5 of 6: Light the burner with the matches.
  • 6 of 6: Use the parchment on the beaker's vapours.