"Sherlock Holmes in Oz" is a short story written by Ruth Berman. It was first published in Oziana 1971, and reprinted in the anthology The Game is Afoot: Parodies, Pastiches, and Ponderings of Sherlock Holmes.
Sherlock Holmes and Dr. Watson are brought to Oz by the Wizard to solve the mystery of the missing Magic Pearls. Holmes discovers that the cactus that used to be Ruggedo has also vanished. He eventually uncovers the thief and the reason for the disappearances.