Ancient lettering (5)
(Other definitions for runes that I've seen before include "old characters" , "Mysterious letters" , "marks on old tablets" , "Small stones bearing symbols with magic significance" , "Old letters" .)
(Other definitions for rune that I've seen before include "Old Scandinavian letter" , "Spell" , "Old alphabet letter" , "Mystic symbol" , "Mysterious character" .)