Answer:

rune

Answer	Crossword Clue
RUNE	Bit of ancient text
RUNE	Letter in a Viking inscription
RUNE	Bit of ancient script

RUNE	It may be set in stone
RUNE	Part of a Viking message
RUNE	Tolkien character
RUNE	It may be carved in stone
RUNE	Mystical character
RUNE	Viking character
RUNE	Letter in an Anglo-Saxon script
RUNE	Hard-to-read character

RUNE	It may be written in stone
RUNE	Bit of Old Norse writing
RUNE	Kylver Stone letter
RUNE	Letter to Odin?
RUNE	Dead letter?
RUNE	Bit of Viking writing
RUNE	Viking letter
RUNE	Anglo-Saxon writing symbol

RUNE	Mysterious character
RUNE	Letter in a mysterious inscription
RUNE	Old character
RUNE	Old Germanic character
RUNE	Something written in stone
RUNE	Bit of writing on the wall?
RUNE	Mysterious writing
RUNE	Mysterious letter

RUNE	Something Eric the Red read
RUNE	Ancient writing
RUNE	Ancient letter
RUNE	Part of an old inscription
RUNE	Ancient symbol
RUNE	Part of an ancient inscription
RUNE	Old-fashioned letter
RUNE	Letter for Gandalf

RUNE	Mystical saying
RUNE	Ancient inscription
RUNE	Ancient alphabetic character
RUNE	Letter for Cynewulf
RUNE	Archeological inscription