Disclaimer: To own or not to own - that is the question. Whether 'tis nobler to suffer the slings and arrows of the outrageous fortune of not owning Harry Potter or to take arms against a sea of troubles and buy it . . . No, wait - neither Sophus nor I have that kind of money. In all seriousness, neither of us own either Harry Potter or Hamlet.
AN (Caela): This ending comes by request of Sophus, who asked for a version where Crookshanks drank the potion and everything still went horribly.
All credit for the idea and the betaing goes to Sophus, as normal. Enjoy, have fun, and don't do dangerous stuff! (Unless you're qualified. Then you can do it.)
After Professor Snape tipped the neon green potion down Crookshanks' throat, he turned towards his desk to get the antidote. Surely nothing would go horribly wrong because the potion was a little bit off.
Then he heard the roar.
He was reluctant to turn around, but he slowly did.
A nundu. Granger's cat was a nundu. One of the most dangerous creatures in existence. Dumbledore would have his head on a silver platter for this!