Conjo is a wizard who only appears in The Shaggy Man of Oz by Jack Snow. He is described as a short bald man who lived alone on an island as he brings Abbadiah and Zebbidiah Jones or Twink and Tom to his castle through their television set. At the end of the book, he attempts to take over the Emerald City and declares himself the new "Wizard of Oz" but he is quickly defeated by the King of the Fairy Beavers who uses the Water of Oblivion to erase his memory.
He is credited with creating the Love Magnet as the Shaggy Man is sent to his castle by Ozma to get it repaired. He demands to be given the magic compass that can transport a person to Oz but since this would leave them stuck, he allows them to use his Airmobile. (Ozma had left for a meeting with Glinda, so the Magic Belt couldn't be used for transportation).
He also brought Twiffle the wooden clown to life.