The box began to speak. There was a crackle that sounded like Dwarfish, although Vimes couldn’t make out a single word. It was followed by a couple of loud knocking noises.
“Second Convocation Hubward Dwarfish,” said Bashfullsson. “That would be right for the time. Whoever is speaking has just said: ‘Art thys thyng workyng?’”

– it’s always like that | Terry Pratchett, Thud!