Has Jessica's joke backfired?

While reading a book about old New Orleans, Jessica Wakefield learns all about voodoo and decides to try it out herself. She knows exactly who she'll make a voodoo doll of her - her brother, Steven of course.
Incrediably, the doll works! Poor Steven is lurching and leaping and writhing for days. Jessica is exhilerated by her powers . . . until she loses control of them. Steven's still moaning in pain, but Jessica's not doing voodoo anymore. Now Steven's a zombie, and it's all her fault!

Voodoo really works!

Jessica tiptoed down the stairs in the dark and peered into the kitchen, where Steven was eating his usual late-night snack of a triple-decker bologna sandwich with ketchup and pickles. He really is a pig, she thought to herself.
Standing in the doorway, Jessica poked at a thumbtack in the doll's stomach. Suddenly the real Steven grabbed his stomach.
She couldn't believe it! Her doll was working!
The real Steven doubled over in pain, making loud groaning noises. His disgusting sandwich fell out of his hand onto the floor.
It worked! It worked! Jessica thought to herself. Voodoo really works!

What will happen when Jessica decides to find a new boyfriend? Jessica's Blind Date