A/N: The challenge was to write a 100-word drabble in which one character discovers another character's secret. In this one, the Trio uncover a possible clue as to why Snape is always so cranky.
Disclaimer: Harry Potter, Hermione Granger, Severus Snape, Madame Pomfrey, 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.
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"Sick, hmm? Acting headachy, is he?" Madame Pomfrey rummaged through a cupboard.
"Yes, exactly," Hermione said. "He was even crankier than usual. Then Neville melted another cauldron--"
"--and half his table," Harry added. "He about went spare. Ordered us out twenty minutes early."
"Now he's just sitting there, holding his head," Ron finished. "Looks a bit greenish."
"Well, thank you. You'd best get to class." Selecting a bottle, the Healer departed.
~~~
That evening, Hermione showed the boys a book she'd found. "I think I've figured it out..."
The Cruciatus: Overexposure And Its Consequences, Chapter 10--Migraines, Chronic.