08-14-2012, 06:30 PM
Luperci are perfectly capable of learning how to read and comprehend written languages like English (or any other old human language); many of them learn from old human books. As far as I know, most characters who write books are letters are doing so in the same human English. I don't think there's really a way to write down the yips and growls they're technically using in High Speech; I've always just assumed it's English as we understand it. :o