The horror novel, called Manhunt, tells a story about a virus which turns men into zombies.
Its writer, Gretchen Felker-Martin, also depicts the Harry Potter author being burned alive in a Scottish castle by transgender women.
An extract from the book reads: “Have the new girls heard what happened to the Harry Potter lady?... Okay, so, first off she ended up being a crazy TERF (trans-exclusionary radical feminists), like, super intense.”
Ms Felker-Martin has referenced Ms Rowling’s fictional death when promoting Manhunt on Twitter.
JK Rowling
Yui Mok
Ms Rowling has been criticised for her trans views
Yui Mok
One tweet read: ‘If you’re sick of gender plague novels written by transphobic dip****s, try my novel MANHUNT, written by a trans woman for a trans audience.
“Trans dykes fall in love and f*** and murder TERFs, feral men maraud in the wilderness, JK Rowling dies, etc.”
The book has been met with mixed reviews.
While some have hailed it, others have called for it to be banned.
One Amazon customer said: “I cannot for the life of me understand why Amazon is selling bile like this.”
Another added: “This book is abuse of women and nothing more. A porn fantasy written by a misogynist.”
And a third wrote: “I have no idea how this even got published. The existence of this book proves once again that misogyny is alright as long as you identify as a member of a certain group.
“If you want to read a messed-up individual’s unhinged violent sexual fantasies against women then this is the book for you!”
Ms Rowling is an outspoken women’s rights feminist and showed her support for the 'Respect My Sex' campaign last month.