A/N: The challenge was to write a drabble in which Snape is rendered speechless.
Disclaimer: Harry Potter, Severus Snape, the Gryffindor students and staff mentioned herein, and all their associates are characters belonging to J.K. Rowling. I claim no rights to them, their surroundings, or their situations. Much to my sorrow.
I Think, Therefore I Am...
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Astoundingly, Longbottom's Potion of Polymorphing had worked. Too well, alas--merely inhaling the fumes transfigured a victim into whatever they were thinking of.
As Severus watched, disbelieving, Longbottom had become a toad. Weasley had turned into a Firebolt; Potter into Sirius Black; and Granger, into a dog-eared copy of Hogwarts: A History. Panic erupted.
Then the door had opened. "Severus? What's all the kerfuffle?" Albus Dumbledore had walked right into the fumes before anyone could stop him.
Try as he might, Severus couldn't find words to explain to Minerva why the Headmaster was now a lemon sherbet.