Never saw this. Will there be a sequel?

It is a one and done story. No sequel.

There could be a sequel since we didn't saw Hazel die just Gus so maybe she gets a puppy that is reincarnated Gus! Imagine: teens + fantasy + dark + religion = blockbuster!

You're thinking maybe Gus might be reanimated as a zombie???

--------------------------
All those moments will be lost in time, like tears in rain. Time to die.

Ha ha, very funny