Magic Block Gadget Cache Traditional Cache

This gadget cache was constructed by Bouncebounce

The cache contains four magic blocks. Each block will illuminate a single digit when it is in the correct proximity to another block. Placing all four blocks side by side in the correct order will illuminate the four-digit combination to access the logbook. NOTE: The outer container is locked to prevent unwanted access. See the hint for the combination. Please replace the lock when you are finished.