Compare The Monster's Ring by Bruce Coville, Paperback | Indigo Chapters

Twist it once, you're horned and haired;Twist it twice and fangs are bared;Twist it thrice? No one has dared! Russell is sure that the ring he gets at Mr. Elives' shop is just a silly magic trick, but he follows the instructions and twists the ring twice anyway—and becomes a monster! Includes an author's note. | The Monster's Ring by Bruce Coville, Paperback | Indigo Chapters