hocus and pocus

“I’ve got an idea if we go up the mountain and pick some of the Hocus and Pocus plant which cures toothache instantly, we might give it to our little friends to take him, and the chances are he would be so pleased at having his pain cured that he would do anything for them.”[…]and then Sapphire said that they must look carefully amongst the grass, for it was in that field that the Hocus and Pocus plant grew; and sure enough, they had hardly walked a quarter of the way across when Mince Pie and Barley Sugar called out that they had found a beautiful plant of it.