Percy and Piper are on their family’s pirate ship when a storm starts up. Piper starts to tell Percy about the legend of the Sea Spirit. The storm picks up, so their parents send them below deck. They decide to hide in the closet, but Percy believes he sees a ghost and it is the Sea Spirit. The ghost turns out to be their dad’s pirate coat and hat. This book is written with short chapters with color illustrations on every page.