Night of the living dummy by R.L. Stine

Night of the Living Dummy (Goosebumps #7) by R.L. Stine
"Mmmmm! Mmmm! Mmmmm!"Kris Powell struggled to get her twin sister's attention.Lindy Powell glanced up from the book she was reading to see what the problem was. Instead of her sister's pretty face, Lindy saw a round, pink bubble nearly the size of Kris's head."Nice one," Lindy said without much enthusiasm. With a sudden move, she poked the bubble and popped it. "Hey!" Kris cried as the pink bubble gum exploded onto her cheeks and chin. Lindy laughed. "Gotcha." Kris angrily grabbed Lindy's paperback and slammed it shut. "Whoops � lost your place!" she exclaimed. She knew her sister hated to lose her place in a book. Lindy grabbed the book back with a scowl. Kris struggled to pull the pink gum off her face. "That was the biggest bubble I ever blew," she said angrily. The gum wasn't coming off her chin. "I've blown much bigger than that," Lindy said with a superior sneer. "I don't believe you two," their mother muttered, making her way into their bedroom and dropping a neatly folded pile of laundry at the foot of Kris's bed. "You even compete over bubble gum? "We're not competing," Lindy muttered. She tossed back her blonde ponytail and returned her eyes to her book. Both girls had straight blonde hair. But Lindy kept hers long, usually tying it behind her head or on one side in a ponytail. And Kris had hers cut very short. It was a way for people to tell the twins apart, for they were nearly identical in every other way. Both had broad foreheads and round, blue eyes. Both had dimples in their cheeks when they smiled. Both blushed easily, large pink circles forming on their pale cheeks. Both thought their noses were a little too wide. Both wished they were a little taller. Lindy's best friend, Alice, was nearly three inches taller, even though she hadn't turned twelve yet. "Did I get it all off?" Kris asked, rubbing her chin, which was red and sticky. "Not all," Lindy told her, glancing up. "There's some in your hair." "Oh, great," Kris muttered. She grabbed at her hair, but couldn't find any bubble gum."Gotcha again," Lindy said, laughing. "You're too easy!" Kris uttered an angry growl. "Why are you always so mean to me?" "Me? Mean?" Lindy looked up in wide-eyed innocence. "I'm an angel. Ask anyone." Exasperated, Kris turned back to her mother, who was stuffing socks into a dresser drawer. "Mom, when am I going to get my own room?" "On the Twelfth of Never," Mrs. Powell replied, grinning. Kris groaned. "That's what you always say." Her mother shrugged. "You know we don't have a spare inch, Kris." She turned to the bedroom window. Bright sunlight streamed through the filmy curtains. "It's a beautiful day. What are you two doing inside?" "Mom, we're not little girls," Lindy said, rolling her eyes. "We're twelve. We're too old to go out and play." "Did I get it all?" Kris asked, still scraping pink patches of bubble gum off her chin. "Leave it. It improves your complexion," Lindy told her. "I wish you girls would be nicer to each other," Mrs. Powell said with a sigh. They suddenly heard shrill barking coming from downstairs. "What's Barky excited about now?" Mrs. Powell fretted. The little black terrier was always barking about something. "Why not take Barky for a walk?" "Don't feel like it," Lindy muttered, nose in her book. "What about those beautiful new bikes you got for your birthdays?" Mrs. Powell said, hands on hips. "Those bikes you just couldn't live without. You know, the ones that have been sitting in the garage since you got them." "Okay, okay. You don't have to be sarcastic, Mom," Lindy said, closing her book. She stood up, stretched, and tossed the book onto her bed. "You want to?" Kris asked Lindy. "Want to what?" "Go for a bike ride. We could ride to the playground, see if anyone's hanging out at school." "You just want to see if Robby is there," Lindy said, making a face. "So?" Kris said, blushing. "Go on. Get some fresh air," Mrs. Powell urged "I'll see you later. I'm off to the supermarket." Kris peered into the dresser mirror. She had gotten most of the gum off. She brushed her short hair back with both hands. "Come on. Let's go out," she said. "Last one out is a rotten egg." She darted to the doorway, beating her sister by half a step. As they burst out the back door, with Barky yipping shrilly behind them, the afternoon sun was high in a cloudless sky. The air was still and dry. It felt more like summer than spring. Both girls were wearing shorts and sleeveless