She turned everyone of her male admirers, though she was attracted to Plastic Man, down because of heart of stone and their inability to make her an opera singer including both Woozy Winks and Professor Carlon, a scientist. After being shot down, Carlon decided to teach Sheila a lesson and created of formula that would turn her body to stone just like her heart. However, she became living stone instead of a statue like the professor's test subject, his cat.