It’s almost that time of year, the time when the little elf magically appears in your living-room and begins assessing the behaviour of the little ones in the lead up to Christmas. Not much is known about the elves themselves, the criteria they use to decide whether the children of the house have been naughty or nice, but a new book, written by a Wexford author, sheds a little light on the mysterious lives of these season interlopers.