Runes may not do need to be visible even if they aren't covered
###Runes maybe don't need to be visible even if there aren't covered InIn the Skulduggery Pleasant series there is a character called China Sorrows. She's a rune mage. Her rune'srunes are only visible if she press the rune with it's counter partits counterpart (when she useuses it) and than it's too late.