Nelson S. Bond, Peter Pettigrew's prisoner (1942)
“ I'm invisible, you know.""N-not to me," quavered Peter Pettigrew."That," frowned Ole Luk Oie, "is obvious. But—Ah! Those dark things you're wearing over your eyes? What do you call them?""They—they're special glasses," said Peter meekly, "to cut down ultra-violet radiation.""So that's it?" Ole Luk Oie nodded sagely. "Now it begins to make sense. We're in the infra-red, you know. All of us immortals. And you humans have been leading us a merry chase ever since your scientists discovered how to photograph our wave-length. ”
