After the summer reading program ends and Carlos watches the wild-eyed kids troop out of the library's rematerialized front door, he becomes determined to see for himself. Just like at the bowling alley, his scientific curiosity won't let him leave it alone. This time, though, he's not underestimating the potential danger. He brings bear spray, which everyone seems to agree is the best defense against angry librarians.
(A little self-indulgent librarian fic, because I just listened to Episode 28, "Summer Reading Program")