[book]The Last Hero
Cohen(old legendary barbarian hero) with his silver horde is going to meet the gods and return what first hero stole(fire).
And state his dislike on heroes dying from natural causes.
Then may be blow up where the gods live.
But if they are successful the world will end.
So Rincewind(best unsuccessful wizard, accidental savior of world(multiple times), but most of all a coward), watchman Carrot(6 foot tall honest dwarf policeman) and Leonard of Quirm(absent minded genius) are going to stop them on orders from Lord Vetinari(patricain/dictator of the city state Ankh-Mprpork).
“Lots of people would be as cowardly as me if they were brave enough.” - RinceWind