accolon bleed

“Indeed, my lord,” said Merlin, “now I know that you
are but litde aware of the kindness the maiden did you. You
may be sure that the scabbard is worth more than ten such
swords, for it is made of a leather which has the virtue that
a man who wears it will never lose blood or receive a mortal
wound, if he is armed rightfully.”
-
Then the maiden took off her spell, so that Accalon
was at once as vigorous as he had been before, but when he
saw that he had lost his sword and the scabbard in which he
had so trusted, there was nothing that could comfort him,
for he saw at once that he was beginning to bleed from all
the wounds the king had given him that day, and he had
not been bleeding before.

The Post Vulgate Cycle