Hint 1: You will first have to unlock the flash drive using the encrypted messages you receive before you can piece together its contents.

Hint 2: It looks like these seven blueprints each only show part of a whole picture.

Hint 3: The blueprint of just The Cave and its proposed expansions can act as a guide for where to place the other six blueprints. Screenshots and a photo-editing software (like Powerpoint or Google Slides) might help!

Hint 4: Hmm, when all the blueprints are correctly placed the mine shafts appear to create a number!

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