Inexorable Darkness

As hinted by "feeling around in the dark", Braille can be used to decode the first of the 11 squares by dividing the grid into 2x3 segments and reading the white squares as the pips.

This decodes to the message START_HERE_COMBINE_THESE. This is a hint to combine the grids together. The exact method is hinted by "Inexorable" and "logically combined" which is a clue to use an XOR Logic Gate.

Combining the first grid with the second grid (combining the pixels in the same location) gives a new output.

This new grid can again be read via Braille but this time using the black squares as the pips.

This one gives the message BALANCE_BY_MARCIA_BILLIG. Each new grid can again be XORed with the grid following it to give a new grid with a new Braille message (alternate between black and white pips on each grid) to give 10 grids total giving a message with a location.