Obtain Mysterious Letter

88888888888888888888c111cccc1111ccccccccccc111c1 88888888888888888888cc11cccccc1111ccccccccccccc1 8ccccccc8c88888888888c11ccccccc11111ccccc11cccc1 8888c8888c88888888888c111cccccccc111ccccccccccc1 8888c8888c88888cccc88c1111cccccccc111c111ccc1cc1 8888c8888ccccc8c88c88c111111cccccccccc1111ccc1cc 8888c8888c888c8cccc88c1111111cccccccccc1cccccccc 8888c8888c888c8c88888c11111111cccccc11c1cccc1ccc 8888c8888c888c8cccc88c111111111cccccc1c1cc1c11cc 888888888888888888888c1111111111ccc1ccc11ccc11cc 888888888888888888888c11111111111ccc1cc11cccc11c 8ccccccc8888888888888c111ccccc1111cccccc1cc1cc1c 8c8888888888cc8888888c11c11111c111cccccc1cc1cc1c 8c888888888ccc8888888c1c1111111c111c1ccc1cc1cccc 8c888888888c8cc888888c1c11111c1c111c1ccc1cc1cccc 8c88888888cc88c888888c1c1c1ccc1c111c1ccc1cc1cccc 8c88cccc88cccccc8888cc1c1cccc11c111ccccc1cc1cccc 8c88888c88c8888c8888c11c1c11c11c1111cccc1ccccccc 8c88888c88c8888c8888c11c1111111c1111cccc1ccc1cc1 8c88888c8cc888888888c111c11111c11111cccccccc1cc1 8ccccccc888888888888c1111ccccc111111cccccccc1ccc 888888888888888cc888c111111111111111ccc1cccc1ccc 8888888888888ccc8888cc1111111111111cccc1ccc11ccc 888cc888cc888c8888888cc111111111111c1cccccc11ccc 888ccc88ccc888c8cc8888c111111111111c1cccccc1cccc 888c8cccc8c888ccc888888c1111111111cc1ccccc11cccc 88cc88cc88c888c88888888c1111111111c1cccccccccccc 88c8888c88cc88cccccc8888c111111111c1ccc1cccccccc 88888888888c888888888888cc1111111cccccc1cccccccc 8888888888888888833338888c111111cc11cc1cccccccc1 8888888888888888377773888c111111cc1ccccccccccccc 8888888888888883733337388cc1111ccccccccccccccccc ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ ................................................ .............................0.................. .........................0.000.................. .........................0000................... .........................0..0................... ................................................ ................................................ ................................................ ................................................ ..............................................11 .............................................111 ............................................1111 ...........................................11111 ..........................................11.1.1 .........................................11.11.1 ........................................11.1.111 ...................22.................111111.111 ..................2222..............111111.11111 .................222222.............111111111111 pig rune Look at the pig rune Monument Head back abbyss Look even deeper