A Discworld Riley

My prefix is the heir to the apprentice of the final reality,
Without the Ephebean "not"

My suffix is both a noun and a verb
Dwarf Bread is not an example of the noun,
Though it may help with the verb

My infix can only be found on Roundworld,
Though its analogue is the creators of Golden Golems

I am soft and gentle, felt only quiet and stillness
Despite this, I contain a death within me

Perhaps you are a

SUSURRATION

My prefix is the heir to the apprentice of the final reality,
Without the Ephebean "not"


SUSAN (from, e.g., Hogfather) without AN -> SUS. [EDITED to add:] Why AN? Because Ephebe ~ Greece, and AN- is a Greek prefix denoting privation, which can be seen in English words like "anomie", "anhydrous" and "anarchy".

My suffix is both a noun and a verb
Dwarf Bread is not an example of the noun,
Though it may help with the verb


RATION. Dwarf bread makes poor rations since you can't actually eat it, but as stated in Witches Abroad it is a good idea to take some with you on a trip because "A traveller can go for miles, just knowing there's dwarf bread in their pack. A traveller can think of just about anything to eat rather than dwarf bread including their own foot and even pumpkins".

My infix can only be found on Roundworld,
Though it's analogue is the creators of Golden Golems


Perhaps UR, rough analogue of UM from Making Money. [EDITED to add:] Xenocacia points out in comments that there is actually an Ur in the Discworld books, which I'd forgotten just as much as the OP had.

I am soft and gentle, felt only quiet and stillness
Despite this, I contain a death within me


A susurration is a murmuring, rustling or whispering. I'm not sure about the "death within me" -- perhaps this is another Pratchett reference, with the RAT indicating the Death of Rats, but that seems a bit far-fetched. [EDITED to add:] Turns out that that was indeed the idea.

• Got it on all accounts, including the last line you weren't sure about – DqwertyC Aug 28 '18 at 23:19
• Great question and answer, but as a Discworld fan I just had to point out that Ur does exist in the Discworld too - its inhabitants are a byword for stupidity in the Klatchian region, and Sgt Colon skillfully (?) passed off as one in Jingo. – Xenocacia Aug 29 '18 at 5:35