This one is not quite as dense as the last one, and it’s a bit more festive being so close to Christmas –

Twas the night before today, when all through the school
Not a creature was stirring, because it was night-time you fool!
The books were all shelved in the library with care,
In hopes that patrons soon would be there.

The reserved books were nestled all snug on their shelf,
books about the military,  wimpy kids and even an elf
The next day, before the patron forgot,
she stopped by the library and put her book in the slot.

The book was scanned and, lo and behold,
_ had come in earlier to put that very book on hold!
To get this book, she has until _, three days from today,
if she has fines be sure she has money to pay.

@JarrettLWilson