**Cross post from AO3, VERY OLD**
Casey Jones was supposed to loathe Donatello .But he couldn't. And with the rise of a dangerous, new mutant, their rivalry is put to the test.
Cover artwork by tmntdoneright on tumblr
I think it's rather self explanatory. Thank you for being here if it ever gets published.
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I am tired and don't want to do school work so I probably will be writing this at school when I can lmao
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Oop