Part of the fun of this book is creating the "secrets" behind well known magic tricks. This sketch shows the origins of the famous "Dancing Cane" effect. There have been several methods over the years (one of the best was Copperfield's).
But in this Novel, those methods where created to hide the truth. And that truth is that dancing canes breed in the wilds of The Conjurian. The canes choose their own masters, which is why not every magician can perform the effect. They also have an excellent sense of direction, aiding many a travelling magician in the old days.
So that's just one of the many trick/creatures you'll meet in the Conjurers. Oh, and I have no idea who the guy on the bottom is...yet.