Your average posse of adventurous types is hired by a wizard to stop the attacks on a small village.
A blade that lives, and has lived for millennia.
"Thentr was made from moonlight and flame; he has killed one of the mighty rulers of the skies; he has yet to return home".
-Old Cro, the story teller
The story I am about to tell you is one of magic and of monsters, of bravery and courage, of good and of evil, but most importantly of Flame and he who wished to quench it - Old Cro, the story teller.
The numorous denizens of Thanethia all in one place.
A race of beings actually IS invunerable while in adolecence. They age, but cannot be killed. A miniority of the race (1 in 20) does not become invunerable, but rather becomes immortal at some point in thier adolecence, and ceases aging while being vunerable to death in all the normal ways. Another minority (also 1 in 20) Permanatly becomes invunerable after adolecence, but ages twice as fast as the race normally does. There is no known way to test for which of the three traits an individual manifests and the three traits cannot mix, as they are tied to the same gene, as it were.