The Twins are two peculiar children dressed in rather odd costumes that could be mistaken for make-up if not looked at closely. They have two pictures in the book, and judging by the sepia of the photo, this photo originated from either Britain, or was taken sometime after or near the end of the Victorian age. The have a brief appearance in the first book when Jacob says, “Where are we going?” to The Twins on page 174. They don’t appear again.