He's been a legend in his own lifetime.
He can remember the great days of high adventure.
He can remember when a hero didn't have to worry about fences and lawyers and civilization.
He can remember when people didn't tell you off for killing dragons.
But he can't always remember, these days, where he put his teeth...
He's really not happy about that bit.
So now, with his ancient sword and his new walking stick and his old friends - and they're very old friends - Cohen and Barbarian is going on one final quest. He's going to climb the highest mountain in the Discworld and meet his gods. He doesn't like the way they let men grow old and die.
The last hero in the world is going to return what the first hero stole.
With a vengeance.
That'll mean the end of the world, if no one stops him in time.