The Fault in Our Stars(What if Hazel Died)

Gus is dead. The cancer spread through his body and he died. But- What if he didn't die? What if the cancer didn't spread and he ended up being in the 80% chance of living after all? But what if Hazel Grace died? What if she got worse? Will Augustus Waters give up or will he be okay?
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Note: The story, The Fault in Our Stars by John Green is NOT mine. This story however, is MINE because I made it. But some of the things in my book are from the original book by John Green.