Why Does My Heart Go Thump-Thump? takes young readers on an enchanting journey through the circulatory system with Lulu, a curious little girl who discovers the amazing work her heart does every single day.
When Lulu presses her hand to her chest and hears "thump-thump," she peers inside to find a wondrous world! Meet Captain Red, a cheerful red blood cell, and Oxy, a giggly blue bubble of oxygen, as they race through bright red highways and cool blue roads, delivering breath and energy to every part of Lulu’s body-from her busy brain to her wiggling toes!