" Nico hung his head almost as low as a katobleps. "I, uh... used to play this stupid card game when I was younger. Mythomagic. The katobleps was one of the monster cards."
Frank blinked. "I played Mythomagic. I never saw that card"
"It was in the Africanus Extreme expansion deck."
"Oh."
Their host cleared his throat. "Are you two done, ah, geek-ing out, as they say? "

― Rick Riordan , The House of Hades (The Heroes of Olympus, #4)