once again, i must be the only person who read the book. yes, i admit it; i read all but 2 of the indiana jones books…
indiana jones and the last crusade by rob macgregor
page 209
indy has used the grail on dad. dad starts to talk to the knight guardian.
hj: …“why are you so old?”
kg: “many times my spirit faltered, and i could not bear to drink from the cup, so i aged, a year for every day i did not drink. but now at last, i am released to death with honour, for this brave knight-errant cometh to take my place.”
hj: " he is not a knight-errant, he’s just my errant son who has led an impure life. unworthy of the honour you bestow."
a bit later elsa grabs the grail while the knight tries to find someone to take his place.
kg: “no! the grail can never leave this place! never!”…
“you must not cross the seal.” … " she will pay dearly"
regarding the knights who found the grail.
pg 51
three brothers find the grail. one hundred and fifty years after finding the grail, two of these brothers walked out of the desert and began their journey home. but only one made it back, and before dying of extreme old age, he imparted his tale to a franciscan friar.
thus:
the book would lead you to believe that drinking from the grail would extend your life quite a bit. staying with the grail and drinking from it would extend your life until you either destroyed the cup or left the cave. then you are subject to the pitfalls of being human; accidents, colds, flu, heart disease, etc.
the knight aging a year per day was punishment for doubting his mission: guarding the grail.
this is why indy was able to live to his 90’s and have a tv series.