This book is designed to help children prepare for a research study involving a magnetic resonance imaging (MRI) brain scan. Specifically, this book is a part of a protocol developed by Dr. Catherine Lebel's Developmental Neuroimaging Laboratory at the University of Calgary for a research study conducted at the Alberta Children's Hospital. Throughout the story, key elements of scanning at the Alberta Children's Hospital are explained in child-friendly terms in order to familiarize children with the scanning environment. Our laboratory is commited to making the MRI scanning experience positive for children.