* Rincewind's HeroicBSOD and the description of him scrabbling through the rubble of [[spoiler:the ruined library]] just about broke me. And then at the end when [[spoiler: he stays behind in the Dungeon Dimensions]]...
** Not just that but the [[spoiler:ruined library]] at all. Being a great lover of books it was heart-breaking, especially after all we've been told about it. There was also the matter of [[spoiler:whether the Librarian got out or not]].
* Rincewind's [[HeroicSacrifice one good deed]]. WAAAAAAH!
** ''Sourcery'' is the only book I have ever read that has literally made me cry. It takes quite a lot to do that.
* Spelter and Carding- both starting out as your standard vicious wizards, both coming to realize something is horribly, horribly ''wrong''... and both discovering that RedemptionEqualsDeath. Extra-horrible bonus points for Carding, since the ''readers'' get a GoryDiscretionShot but ''Coin'' [[ForcedToWatch doesn't]].
* The beginning with Ipslore and his wife's death: "All my magic could not save her."