"An authoritative, accessible guide to how our lungs work and how to protect them. Most of us pay little attention to the workings of our lungs, but the COVID-19 pandemic has sparked interest in their functioning and fear about the risks they face. Dr. MeiLan K. Han, a leading pulmonologist and a national spokesperson for the American Lung Association, takes readers on a fascinating tour of this most vital organ. Han explains the wonder of breathing...

Catrina and her family are moving to the coast of Northern California because her little sister, Maya, is sick. Cat isn't happy about leaving her friends for Bahía de la Luna, but Maya has cystic fibrosis and will benefit from the cool, salty air that blows in from the sea. As the girls explore their new home, a neighbor lets them in on a secret: there are ghosts in Bahía de la Luna. Maya is determined to meet one, but Cat wants nothing to do with...