Dorrie and the Magic Elixir is a children's book written by Patricia Coombs. It was first published in 1974. It was the eleventh book in the Dorrie the Little Witch book series.
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Dorrie is thrilled when her mother, the Big Witch, puts her and her cat Gink in charge of protecting a secret recipe -- the Magic Elixir that makes people hex-proof, spell-proof, potion-proof and INDESTRUCTABLE! When the evil Green Wizard tries to sneak in and steal the Elixir, Dorrie needs a lot more than ordinary magic to stop him from taking one sip.