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[edit] In the Catacombs

To leave the Catacombs, you need to push words on the gravestones.

• above or beneath - above
• climbing or outside - outside
• look or secrets - secrets
• this or that - that
• green or red - green
• I or you - you
• is or not - not

Finally, on the last gravestone, you need the following words: "red", "climbing", "I", "is", "look", "beneath", "this".