Library, Shades of Gray

It seemed like most everyone was stuck in the library while the rain pelted silently away in the courtyard.  The thick hushing of the ventilation system drowned out its patter.
A girl in a blue sweatshirt leaned over a table, curled into her physics book looking for equations that would explain what the hell was going on.  Who really knew? She wondered.  Newton only got so close.
Tap- taps of typing, occasional coughs, pencil scratches broke the air like little jolts of electricity running through the stillness.  With its constant yellow light, its perpetual, recirculating atmosphere, the library was suspended like a Jello mold (only wobbling once in a while when someone new came in and dropped their bags of priorities).
Now the girl was in a groove, calculating and after every problem sipping on a can of Arizona iced tea.  Outside, twilight arrived in stealth- the rain clouds concealing the change of light, dampening the ray's intrusions.  The girl looked up.  A boy with a bloated backpack was approaching but still miles away in the stacks.  She looked back down; she'd be able to solve this one equation before he arrived.
Attention... the intercom spoke.  The circulation desk will be...  No problem- thought the girl- I won't be checking out.  The boy sat down and pulled out a candy bar.  What chapter are you on?  23.
24.
25.
26.
27.
The world outside was a black patter-patter and inside was stale cramped necks and detachment.