Raven plumes

[kev100]

My first are raven plumes dipped deep in inky well,
and shades of buried tombs concealed by darkest spell.
The caves of ancient things whose shadows bare no light,
and blood of fallen kings when seen spilt in the night.

My second, written runes, so many meanings tell,
and folded word cocoons, some hint of perfume smell.
Or gaudy-shiny rings that keep flesh free from plight,
a weave wore by past kings when vested in their might.

My whole, a threat that looms, if any of it tells,
to one a certain doom and one this secret fell.
A consequence it brings, should viewed by other's sight,
a bounty fit for kings to free this thing held tight.

[Madmonks]

I think the 2nd verse relates to chain mail,( gaudy shiny rings keeping flesh from harm and the type of armour worn by knights) could relate in turn to chain letters or mail(written runes) hope this helps.

[Marsh]

Looking for something else, I saw this.  The first lines could give Black, Mail, Blackmail.  The succeeding lines don't totally fit but it seemed worth posting.

[kev100]

Thanks to both of you for the input you have given me another road to try